Open save in EJ2 TypeScript Spreadsheet control

19 Dec 202424 minutes to read

The native data format for Spreadsheet is JSON. When you open an excel file, it needs to be read and converted to client side Spreadsheet model. The converted client side Spreadsheet model is sent as JSON which is used to render Spreadsheet. Similarly, when you save the Spreadsheet, the client Spreadsheet model is sent to the server as JSON for processing and saved as Excel file formats. Server configuration is used for this process.

Open

The Spreadsheet control opens an Excel document with its data, style, format, and more. To enable this feature, set allowOpen as true and assign service url to the openUrl property.

User Interface:

In user interface you can open an Excel document by clicking File > Open menu item in ribbon.

The following sample shows the Open option by using the openUrl property in the Spreadsheet control. You can also use the beforeOpen event to trigger before opening an Excel file.

index.ts
index.html
import { Spreadsheet, BeforeOpenEventArgs } from '@syncfusion/ej2-spreadsheet';

//Initialize the Spreadsheet control
let spreadsheet: Spreadsheet = new Spreadsheet({
    allowOpen: true,
    openUrl: 'https://services.syncfusion.com/js/production/api/spreadsheet/open',
    beforeOpen: (args: BeforeOpenEventArgs) => {
        // your code snippets here
    }
});

//Render the initialized Spreadsheet
spreadsheet.appendTo('#spreadsheet');
<!DOCTYPE html>
<html lang="en">

<head>
        <title>EJ2 SpreadSheet</title>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta name="description" content="Typescript UI Controls" />
        <meta name="author" content="Syncfusion" />
        <link rel="shortcut icon" href="resources/favicon.ico" />
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-inputs/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-lists/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-dropdowns/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-grids/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-spreadsheet/styles/material.css" rel="stylesheet" />
        <link href="styles.css" rel="stylesheet" />
        <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/shim.min.js"></script>
        <script src="system.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
       <!--Element which is going to render-->
       <div id='loader'>Loading....</div>
       <div id='container'>
       <div id="spreadsheet"></div>
       </div>
</body>

</html>

Please find the below table for the beforeOpen event arguments.

Parameter	Type	Description
file	FileList or string or File	To get the file stream. `FileList` - contains length and item index. `File` - specifies the file lastModified and file name.
cancel	boolean	To prevent the open operation.
requestData	object	To provide the Form data.

Use Ctrl + O keyboard shortcut to open Excel documents.

The default value of the allowOpen property is true. For demonstration purpose, we have showcased the allowOpen property in previous code snippet.

Open an excel file using a file uploader

If you explore your machine to select and upload an excel document using the file uploader, you will receive the uploaded document as a raw file in the success event of the file uploader. In this success event, you should pass the received raw file as an argument to the Spreadsheet’s open method to see the appropriate output.

index.ts
index.html
import { Spreadsheet } from '@syncfusion/ej2-spreadsheet';
import { Uploader } from '@syncfusion/ej2-inputs';

let spreadsheet: Spreadsheet = new Spreadsheet({
  openUrl: 'https://services.syncfusion.com/js/production/api/spreadsheet/open',
});
spreadsheet.appendTo('#spreadsheet');

let uploader: Uploader = new Uploader({
  asyncSettings: {
    saveUrl:
      'https://services.syncfusion.com/js/production/api/FileUploader/Save',
    removeUrl:
      'https://services.syncfusion.com/js/production/api/FileUploader/Remove',
  },
  success: onSuccess,
  allowedExtensions: '.csv, .xls, .xlsx',
});
uploader.appendTo('#uploader');

function onSuccess(args): void {
  if (args.operation == 'upload')
    spreadsheet.open({ file: args.file.rawFile });
}
<!DOCTYPE html>
<html lang="en">

<head>
        <title>EJ2 SpreadSheet</title>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta name="description" content="Typescript UI Controls" />
        <meta name="author" content="Syncfusion" />
        <link rel="shortcut icon" href="resources/favicon.ico" />
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-inputs/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-lists/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-dropdowns/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-grids/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-spreadsheet/styles/material.css" rel="stylesheet" />
        <link href="styles.css" rel="stylesheet" />
        <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/shim.min.js"></script>
        <script src="system.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
        <!--Element which is going to render-->
        <div id='loader'>Loading....</div>
        <div id='container'>
                <div id="spreadsheet"></div>
                <input type='file' id='uploader' name='UploadFiles' />
        </div>
</body>

</html>

Open an external URL excel file while initial load

You can achieve to access the remote excel file by using the created event. In this event you can fetch the excel file and convert it to a blob. Convert this blob to a file and open this file by using Spreadsheet component open method.

index.ts
index.html
import { Spreadsheet } from '@syncfusion/ej2-spreadsheet';

//Initialize the Spreadsheet control
    let spreadsheet: Spreadsheet = new Spreadsheet({
        openUrl: 'https://services.syncfusion.com/js/production/api/spreadsheet/open',
        saveUrl: 'https://services.syncfusion.com/js/production/api/spreadsheet/save',
        created: (): void => {
            fetch("https://cdn.syncfusion.com/scripts/spreadsheet/Sample.xlsx") // fetch the remote url
                .then((response) => {
                    response.blob().then((fileBlob) => { // convert the excel file to blob
                    let file = new File([fileBlob], "Sample.xlsx"); //convert the blob into file
                    spreadsheet.open({ file: file }); // open the file into Spreadsheet
                    })
                })
        }
    });
//Render the initialized Spreadsheet
spreadsheet.appendTo('#spreadsheet');
<!DOCTYPE html>
<html lang="en">

<head>
        <title>EJ2 SpreadSheet</title>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta name="description" content="Typescript UI Controls" />
        <meta name="author" content="Syncfusion" />
        <link rel="shortcut icon" href="resources/favicon.ico" />
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-inputs/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-lists/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-dropdowns/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-grids/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-spreadsheet/styles/material.css" rel="stylesheet" />
        <link href="styles.css" rel="stylesheet" />
        <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/shim.min.js"></script>
        <script src="system.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
       <!--Element which is going to render-->
       <div id='loader'>Loading....</div>
       <div id='container'>
       <div id="spreadsheet"></div>
       </div>
</body>

</html>

Open an excel file from blob data

By default, the Spreadsheet control provides an option to browse files from the local file system and open them within the control. If you want to open an Excel file from blob data, you need to fetch the blob data from the server or another source and convert this blob data into a File object. Then, you can use the open method in the Spreadsheet control to load that File object.

Please find the code to fetch the blob data and load it into the Spreadsheet control below.

index.ts
index.html
import { Spreadsheet, BeforeSaveEventArgs, SaveCompleteEventArgs } from '@syncfusion/ej2-spreadsheet';

let base64String: string | ArrayBuffer = "data:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;base64,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";

let spreadsheet: Spreadsheet = new Spreadsheet({
  openUrl: 'https://services.syncfusion.com/js/production/api/spreadsheet/open',
  saveUrl: 'https://services.syncfusion.com/js/production/api/spreadsheet/save',
  sheets: [{
  }],

  created: (): void => {
    fetch(base64String as string)
    // To obtain blob data from base64 string.
      .then((response) => response.blob())
      .then((fileBlob) => {
        // To convert obtained blob data as a file.
        let file = new File([fileBlob], 'Sample.xlsx');
        spreadsheet.open({ file: file });
      });
  }

});

spreadsheet.appendTo('#spreadsheet');
<!DOCTYPE html>
<html lang="en">

<head>
        <title>EJ2 SpreadSheet</title>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta name="description" content="Typescript UI Controls" />
        <meta name="author" content="Syncfusion" />
        <link rel="shortcut icon" href="resources/favicon.ico" />
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-inputs/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-lists/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-dropdowns/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-grids/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-spreadsheet/styles/material.css" rel="stylesheet" />
        <link href="styles.css" rel="stylesheet" />
        <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/shim.min.js"></script>
        <script src="system.config.js"></script>

<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
        <!--Element which is going to render-->
        <div id='loader'>Loading....</div>
        <div id='container'>
                <div id="spreadsheet"></div>
        </div>
</body>

</html>

Open an Excel file located on a server

By default, the Spreadsheet control provides an option to browse files from the local file system and open them within the control. If you want to load an Excel file located on a server, you need to configure the server endpoint to fetch the Excel file from the server location, process it using Syncfusion.EJ2.Spreadsheet.AspNet.Core, and send it back to the client side as JSON data. On the client side, you should use the openFromJson method to load that JSON data into the Spreadsheet control.

Server Endpoint:

    public IActionResult Open([FromBody] FileOptions options)
    {
        OpenRequest open = new OpenRequest();
        string filePath = _env.ContentRootPath.ToString() + "\\Files\\" + options.FileName + ".xlsx";
        // Getting the file stream from the file path.
        FileStream fileStream = new FileStream(filePath, FileMode.Open);
        // Converting "MemoryStream" to "IFormFile".
        IFormFile formFile = new FormFile(fileStream, 0, fileStream.Length, "", options.FileName + ".xlsx"); 
        open.File = formFile;
        // Processing the Excel file and return the workbook JSON.
        var result = Workbook.Open(open);
        fileStream.Close();
        return Content(result);
    }

    public class FileOptions
    {
        public string FileName { get; set; } = string.Empty;
    }

Client Side:

    // Fetch call to server to load the Excel file.
    fetch('https://localhost:{Your port number}/Home/Open', {
        method: 'POST',
        headers: {
            'Content-Type': 'application/json',
        },
        body: JSON.stringify({ FileName: 'Sample' }),
    })
    .then((response) => response.json())
    .then((data) => {
            // Load the JSON data into spreadsheet.
            spreadsheet.openFromJson({ file: data });
    })

You can find the server endpoint code to fetch and process the Excel file in this attachment. After launching the server endpoint, you need to update the URL on the client side sample as shown below.

// To open an Excel file from the server.
fetch('https://localhost:{port number}/Home/Open')

Open an excel file using a hosted web service in AWS Lambda

Before proceeding with the opening process, you should deploy the spreadsheet open/save web API service in AWS Lambda. To host the open/save web service in the AWS Lambda environment, please refer to the following KB documentation.

How to deploy a spreadsheet open and save web API service to AWS Lambda

After deployment, you will get the AWS service URL for the open and save actions. Before opening the Excel file with this hosted open URL, you need to prevent the default file opening process to avoid getting a corrupted file on the open service end. The spreadsheet component appends the file to the formData and sends it to the open service, which causes the file to get corrupted. To prevent this, set the args.cancel value to true in the beforeOpen event. After that, you will get the selected file in the beforeOpen event argument. Then, convert this file into a base64 string and send it to the open service URL using a fetch request.

On the open service end, convert the base64 string back to a file and pass it as an argument to the workbook Open method. The open service will process the file and return the spreadsheet data in JSON format. You will then receive this JSON data in the fetch success callback. Finally, use the openFromJson method to load this JSON data into the spreadsheet component.

The following code example shows how to open an Excel file using a hosted web service in AWS Lambda, as mentioned above.

import { Spreadsheet } from '@syncfusion/ej2-spreadsheet';

//Initialize Spreadsheet component
let spreadsheet: Spreadsheet = new Spreadsheet({
    sheets: [
    ],
    openUrl: 'https://xxxxxxxxxxxxxxxxxx.amazonaws.com/Prod/api/spreadsheet/open',
    beforeOpen: (eventArgs) => {
        eventArgs.cancel = true; // To prevent the default open action.
        if (eventArgs.file) {
            const reader = new FileReader();
            reader.readAsDataURL(eventArgs.file);
            reader.onload = () => {
                // Removing the xlsx file content-type.
                const base64Data: any = reader.result.replace('data:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;base64,', '');
                openExcel({
                    file: base64Data,
                    extension: eventArgs.file.name.slice(eventArgs.file.name.lastIndexOf('.') + 1),
                    password: eventArgs.password || ''
                });
            };
        }
    }
});
const openExcel = (requestData) => {
    // Fetch call to AWS server for open processing.
    fetch('https://xxxxxxxxxxxxxxxxxx.amazonaws.com/Prod/api/spreadsheet/open', {
        method: 'POST',
        headers: {
            'Accept': 'application/json, text/plain',
            'Content-Type': 'application/json;charset=UTF-8'
        },
        body: JSON.stringify(requestData)
    }).then((response) => {
        if (response.ok) {
            return response.json();
        }
    }).then((data) => {
        // Loading the JSON data into our spreadsheet.
        if (data.Workbook && data.Workbook.sheets) {
            spreadsheet.openFromJson({ file: data });
        }
    }).catch((error) => {
        console.log(error);
    });
};

//Render initialized Spreadsheet component
spreadsheet.appendTo('#spreadsheet');

public IActionResult Open(OpenOptions openOptions)
{
    // Convert the base64 string to bytes array.
    byte[] bytes = Convert.FromBase64String(openOptions.File);
    // Loading the bytes array to stream.
    MemoryStream stream = new MemoryStream(bytes);
    OpenRequest open = new OpenRequest();
    // Converting the stream into FormFile.
    open.File = new FormFile(stream, 0, bytes.Length, "Sample", "Sample." + openOptions.Extension);
    if (string.IsNullOrEmpty(openOptions.Password))
        open.Password = openOptions.Password;
    var result = Workbook.Open(open);
    return Content(result);
}

public class OpenOptions
{
    public string File { get; set; } = string.Empty;
    public string Password { get; set; } = string.Empty;
    public string Extension { get; set; } = string.Empty;
}

Open an excel file from Base64 string data

In the Syncfusion Spreadsheet component, there is no direct option to open data as a Base64 string. To achieve this, the import() function fetches the Base64 string, converts it to a Blob, creates a File object from the Blob, and then opens it using the open method in the spreadsheet.

The following code example shows how to save the spreadsheet data as base64 string.

index.ts
index.html
import { Spreadsheet, BeforeSaveEventArgs, SaveCompleteEventArgs } from '@syncfusion/ej2-spreadsheet';
import { data } from './datasource.ts';

let base64String: string | ArrayBuffer;

let spreadsheet: Spreadsheet = new Spreadsheet({
  openUrl: 'https://services.syncfusion.com/js/production/api/spreadsheet/open',
  sheets: [{
    name: 'Car Sales Report',
    ranges: [{ dataSource: data }],
    columns: [
      { width: 180 }, { width: 130 }, { width: 130 }, { width: 180 },
      { width: 130 }, { width: 120 }
    ]
  }],

  created: (): void => {
    //Applies cell and number formatting to specified range of the active sheet
    spreadsheet.cellFormat({ fontWeight: 'bold', textAlign: 'center', verticalAlign: 'middle' }, 'A1:F1');
  },

  beforeSave: (args: BeforeSaveEventArgs): void => {
    args.needBlobData = true; // To trigger the saveComplete event.
    args.isFullPost = false; // Get the spreadsheet data as blob data in the saveComplete event.
  },

  saveComplete: (args: SaveCompleteEventArgs): void => {
    // Convert blob data to base64 string.
    let reader: FileReader = new FileReader();
    reader.readAsDataURL(args.blobData);
    reader.onloadend = function () {
      base64String = reader.result ? reader.result : '';
    };
  }

});

spreadsheet.appendTo('#spreadsheet');

document.getElementById("import")!.onclick = (): void => {
  // Open the file based on saved base64 string.
  fetch(base64String as string)
    .then((response) => response.blob())
    .then((fileBlob) => {
      let file = new File([fileBlob], 'Sample.xlsx');
      spreadsheet.open({ file: file });
    });
}

document.getElementById("export")!.onclick = (): void => {
  spreadsheet.save({
    url: 'https://services.syncfusion.com/js/production/api/spreadsheet/save',
    fileName: 'Worksheet',
    saveType: 'Xlsx',
  }); // Specifies the save URL, file name, file type need to be saved.
  // Logs base64 string into the console.
  console.log('Base64 String - ', base64String);
}
<!DOCTYPE html>
<html lang="en">

<head>
        <title>EJ2 SpreadSheet</title>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta name="description" content="Typescript UI Controls" />
        <meta name="author" content="Syncfusion" />
        <link rel="shortcut icon" href="resources/favicon.ico" />
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-inputs/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-lists/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-dropdowns/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-grids/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-spreadsheet/styles/material.css" rel="stylesheet" />
        <link href="styles.css" rel="stylesheet" />
        <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/shim.min.js"></script>
        <script src="system.config.js"></script>

<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
        <!--Element which is going to render-->
        <div id='loader'>Loading....</div>
        <div id='container'>
                <button class="e-btn custom-btn" id="import">Import Base64</button>
                <button class="e-btn custom-btn" id="export">Export as Base64</button>
                <div id="spreadsheet"></div>
        </div>
</body>

</html>

Open excel file into a read-only mode

You can open excel file into a read-only mode by using the openComplete event. In this event, you must protect all the sheets and lock its used range cells by using protectSheet and lockCells methods.

index.ts
index.html
import {
  Spreadsheet,
  ProtectSettingsModel,
  SheetModel,
  getRangeAddress,
} from '@syncfusion/ej2-spreadsheet';

//Initialize Spreadsheet component

let spreadsheet: Spreadsheet = new Spreadsheet({
  openUrl:
    'https://services.syncfusion.com/js/production/api/spreadsheet/open',
  saveUrl:
    'https://services.syncfusion.com/js/production/api/spreadsheet/save',

  openComplete: (): void => {
    let sheets: SheetModel[] = spreadsheet.sheets;
    for (let index: number = 0; index < sheets.length; index++) {
      let name: string = spreadsheet.sheets[index].name;
      let protectSetting: ProtectSettingsModel = {
        selectCells: true,
        formatCells: false,
      };

      //To protect the sheet using sheet name
      spreadsheet.protectSheet(name, protectSetting);
      let address: string = getRangeAddress([
        0,
        0,
        sheets[index].usedRange.rowIndex,
        sheets[index].usedRange.colIndex,
      ]);
      //To lock the used range cells
      spreadsheet.lockCells(name + '!' + address, true);
    }
  },
});

spreadsheet.appendTo('#spreadsheet');
<!DOCTYPE html>
<html lang="en">

<head>
        <title>EJ2 SpreadSheet</title>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta name="description" content="Typescript UI Controls" />
        <meta name="author" content="Syncfusion" />
        <link rel="shortcut icon" href="resources/favicon.ico" />
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-inputs/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-lists/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-dropdowns/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-grids/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-spreadsheet/styles/material.css" rel="stylesheet" />
        <link href="styles.css" rel="stylesheet" />
        <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/shim.min.js"></script>
        <script src="system.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
       <!--Element which is going to render-->
       <div id='loader'>Loading....</div>
       <div id='container'>
       <div id="spreadsheet"></div>
       </div>
</body>

</html>

Configure JSON deserialization options

Previously, when opening a workbook JSON object into the Spreadsheet using the openFromJson method, the entire workbook, including all features specified in the JSON object, was processed and loaded into the Spreadsheet.

Now, you have the option to selectively ignore some features during the opening of the JSON object by configuring deserialization options and passing them as arguments to the openFromJson method. This argument is optional, and if not configured, the entire workbook JSON object will be loaded without ignoring any features.

spreadsheet.openFromJson({ file: file }, { ignoreStyle: true });

Options	Description
onlyValues	If true, only the cell values will be loaded.
ignoreStyle	If true, styles will be excluded when loading the JSON data.
ignoreFormula	If true, formulas will be excluded when loading the JSON data.
ignoreFormat	If true, number formats will be excluded when loading the JSON data.
ignoreConditionalFormat	If true, conditional formatting will be excluded when loading the JSON data.
ignoreValidation	If true, data validation rules will be excluded when loading the JSON data.
ignoreFreezePane	If true, freeze panes will be excluded when loading the JSON data.
ignoreWrap	If true, text wrapping settings will be excluded when loading the JSON data.
ignoreChart	If true, charts will be excluded when loading the JSON data.
ignoreImage	If true, images will be excluded when loading the JSON data.
ignoreNote	If true, notes will be excluded when loading the JSON data.

The following code snippet demonstrates how to configure the deserialization options and pass them as arguments to the openFromJson method:

index.ts
index.html
import { Spreadsheet, BeforeOpenEventArgs, SerializationOptions } from '@syncfusion/ej2-spreadsheet';
import { Uploader } from '@syncfusion/ej2-inputs';

//Initialize the Spreadsheet control
let spreadsheet: Spreadsheet = new Spreadsheet({
    beforeOpen: (args: BeforeOpenEventArgs) => {
        args.cancel = true;
        const valueOnlyCheckbox: boolean = (document.getElementById("valueOnly") as HTMLInputElement).checked;
        const options: SerializationOptions = valueOnlyCheckbox ? { onlyValues: true } : createOptions();
        fetch(
            'https://services.syncfusion.com/js/production/api/spreadsheet/open',
            args.requestData
        ).then((response) => {
            response.json().then((data) => {
                spreadsheet.openFromJson({ file: data }, options)
            });
        });
    }
});

//Render the initialized Spreadsheet
spreadsheet.appendTo('#spreadsheet');

let uploadObj: Uploader = new Uploader({
    asyncSettings: {
        saveUrl: 'https://services.syncfusion.com/js/production/api/FileUploader/Save',
        removeUrl: 'https://services.syncfusion.com/js/production/api/FileUploader/Remove'
    },
    allowedExtensions: '.xlsx, .xls, .csv',
    showFileList: false,
    buttons: {
        browse: 'Choose file',
    },
    success: (args) => {
        if (args.operation == 'upload') {
            spreadsheet.open({ file: args.file.rawFile });
        }
    }
});
uploadObj.appendTo('#fileupload');

function createOptions(): SerializationOptions {
    const options: SerializationOptions = {};
    options.ignoreStyle = (document.getElementById('style') as HTMLInputElement).checked;
    options.ignoreFormula = (document.getElementById('formula') as HTMLInputElement).checked;
    options.ignoreFormat = (document.getElementById('format') as HTMLInputElement).checked;
    options.ignoreConditionalFormat = (document.getElementById('cf') as HTMLInputElement).checked;
    options.ignoreValidation = (document.getElementById('dv') as HTMLInputElement).checked;
    options.ignoreFreezePane = (document.getElementById('freeze') as HTMLInputElement).checked;
    options.ignoreWrap = (document.getElementById('wrap') as HTMLInputElement).checked;
    options.ignoreChart = (document.getElementById('chart') as HTMLInputElement).checked;
    options.ignoreImage = (document.getElementById('image') as HTMLInputElement).checked;
    options.ignoreNote = (document.getElementById('note') as HTMLInputElement).checked;
    return options;
}

function toggleCheckboxes(): void {
    const valueOnlyCheckbox: HTMLInputElement = document.getElementById('valueOnly') as HTMLInputElement;
    const checkboxes: NodeListOf<Element> = document.querySelectorAll('#Openfromjson input[type="checkbox"]:not(#valueOnly)');
    checkboxes.forEach(checkbox => {
        (checkbox as HTMLInputElement).disabled = valueOnlyCheckbox.checked;
        if (valueOnlyCheckbox.checked) {
            (checkbox as HTMLInputElement).checked = false;
        }
    });
}

const valueOnlyElement: HTMLElement | null = document.getElementById('valueOnly');
if (valueOnlyElement) {
    valueOnlyElement.addEventListener('change', toggleCheckboxes);
}
<!DOCTYPE html>
<html lang="en">

<head>
        <title>EJ2 SpreadSheet</title>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta name="description" content="Typescript UI Controls" />
        <meta name="author" content="Syncfusion" />
        <link rel="shortcut icon" href="resources/favicon.ico" />
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-inputs/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-lists/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-dropdowns/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-grids/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-spreadsheet/styles/material.css" rel="stylesheet" />
        <link href="styles.css" rel="stylesheet" />
        <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/shim.min.js"></script>
        <script src="system.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
        <!--Element which is going to render-->
        <div id='loader'>Loading....</div>
        <div id='container'>
                <div id="Openfromjson">
                        <label id="Heading">Open From Json Options:</label> <br>
                        <input type="checkbox" id="valueOnly"><label for="valueOnly">Only Values</label>
                        <input type="checkbox" id="style"><label for="style">Ignore Style</label>
                        <input type="checkbox" id="formula"><label for="formula">Ignore Formula</label>
                        <input type="checkbox" id="format"><label for="format">Ignore Format</label>
                        <input type="checkbox" id="cf"><label for="cf">Ignore CF</label>
                        <input type="checkbox" id="dv"><label for="dv">Ignore Validation</label>
                        <input type="checkbox" id="freeze"><label for="freeze">Ignore Freezepane</label>
                        <input type="checkbox" id="wrap"><label for="wrap">Ignore Wrap</label>
                        <input type="checkbox" id="chart"><label for="chart">Ignore Chart</label>
                        <input type="checkbox" id="image"><label for="image">Ignore Image</label>
                        <input type="checkbox" id="note"><label for="note">Ignore Note</label>
                        <input type="file" id="fileupload" name="UploadFiles">
                </div>
                <div id="spreadsheet"></div>
        </div>
</body>

</html>

Chunk response processing

When opening large Excel files with many features and data, the server response can become very large. This might cause memory issues or connection problems during data transmission. The Chunk Response Processing feature solves this by dividing the server response into smaller parts, called chunks, and sending them to the client in parallel. The client receives these chunks and combines them to load the Excel data smoothly into the spreadsheet.

You can enable this feature by setting the chunkSize property in the openSettings object. Set the chunkSize to a value greater than 0 (in bytes). The chunkSize defines how large each chunk will be. Make sure your server supports chunked responses to use this feature effectively.

This feature reduces memory usage on both the server and client, ensuring that resources are managed efficiently during data transmission. By sending smaller parts of data, it prevents connection issues that could occur with large payloads, making the transmission process more reliable. Additionally, it allows large Excel files to be loaded smoothly into the spreadsheet, providing a seamless user experience even with extensive data.

The following code example demonstrates the client-side and server-side configuration required for handling chunk-based responses when opening an Excel file.

Client Side:

import { Spreadsheet } from '@syncfusion/ej2-spreadsheet';

const spreadsheet: Spreadsheet = new Spreadsheet({
    openSettings: {
        // Specifies the size (in bytes) of each chunk for the server response when opening a document.
        chunkSize: 1000000,
        // Specifies the number of retry attempts for a failed server request when returning the opened file responses in chunks.
        // This ensures reliable handling of temporary network or server disruptions during the chunked response process.
        retryCount: 3,
        // Specifies the delay (in milliseconds) before retrying a failed server request when returning the opened file responses in chunks.
        // This ensures controlled retries in case of temporary network or server disruptions during the chunked response process.
        retryAfterDelay: 500
    },
    openUrl: 'https://localhost:{port number}/Home/Open'
});

spreadsheet.appendTo('#spreadsheet');

Server Endpoint:

public IActionResult Open(IFormCollection openRequest)
{
    OpenRequest open = new OpenRequest();
    if (openRequest.Files.Count > 0)
    {
        open.File = openRequest.Files[0];
    }
    Microsoft.Extensions.Primitives.StringValues chunkPayload;
    if (openRequest.TryGetValue("chunkPayload", out chunkPayload))
    {
        // The chunk payload JSON data includes information essential for processing chunked responses.
        open.ChunkPayload = chunkPayload;
    }
    var result = Workbook.Open(open, 150);
    return Content(result);
}

The attachment includes the server endpoint code for handling chunk-based open processing. After launching the server endpoint, update the openUrl property of the spreadsheet in the client-side sample with the server URL, as shown below.

    // Specifies the service URL for processing the Excel file, converting it into a format suitable for loading in the spreadsheet.
    openUrl: 'https://localhost:{port number}/Home/Open'

Add custom header during open

You can add your own custom header to the open action in the Spreadsheet. For processing the data, it has to be sent from server to client side and adding customer header can provide privacy to the data with the help of Authorization Token. Through the beforeOpen event, the custom header can be added to the request during open action.

index.ts
index.html
import { BeforeOpenEventArgs, Spreadsheet } from '@syncfusion/ej2-spreadsheet';

//Initialize the Spreadsheet control
    let spreadsheet: Spreadsheet = new Spreadsheet({
        openUrl: 'https://services.syncfusion.com/js/production/api/spreadsheet/open',
        saveUrl: 'https://services.syncfusion.com/js/production/api/spreadsheet/save',
        beforeOpen: (args: BeforeOpenEventArgs) => {
            args.requestData['headers'] = {
                ...args.requestData,
                headers: { Authorization: 'YOUR TEXT' },
            }
        }
    });
//Render the initialized Spreadsheet
spreadsheet.appendTo('#spreadsheet');
<!DOCTYPE html>
<html lang="en">

<head>
        <title>EJ2 SpreadSheet</title>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta name="description" content="Typescript UI Controls" />
        <meta name="author" content="Syncfusion" />
        <link rel="shortcut icon" href="resources/favicon.ico" />
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-inputs/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-lists/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-dropdowns/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-grids/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-spreadsheet/styles/material.css" rel="stylesheet" />
        <link href="styles.css" rel="stylesheet" />
        <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/shim.min.js"></script>
        <script src="system.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
       <!--Element which is going to render-->
       <div id='loader'>Loading....</div>
       <div id='container'>
       <div id="spreadsheet"></div>
       </div>
</body>

</html>

External workbook confirmation dialog

When you open an excel file that contains external workbook references, you will see a confirmation dialog. This dialog allows you to either continue with the file opening or cancel the operation. This confirmation dialog will appear only if you set the AllowExternalWorkbook property value to false during the open request, as shown below. This prevents the spreadsheet from displaying inconsistent data.

public IActionResult Open(IFormCollection openRequest)
    {
        OpenRequest open = new OpenRequest();
        open.AllowExternalWorkbook = false;
        open.File = openRequest.Files[0];
        return Content(Workbook.Open(open));
    }

This feature is only applicable when importing an Excel file and not when loading JSON data or binding cell data.

External workbook confirmation dialog

Supported file formats

The following list of Excel file formats are supported in Spreadsheet:

MS Excel (.xlsx)
MS Excel 97-2003 (.xls)
Comma Separated Values (.csv)
Excel Macro-Enabled Workbook (.xlsm)
Excel Binary Workbook(.xlsb)

Save

The Spreadsheet control saves its data, style, format, and more as Excel file document. To enable this feature, set allowSave as true and assign service url to the saveUrl property.

User Interface:

In user interface, you can save Spreadsheet data as Excel document by clicking File > Save As menu item in ribbon.

The following sample shows the Save option by using the saveUrl property in the Spreadsheet control. You can also use the beforeSave event to trigger before saving the Spreadsheet as an Excel file.

index.ts
index.html
import { Spreadsheet, SheetModel, BeforeSaveEventArgs } from '@syncfusion/ej2-spreadsheet';
let sheet: SheetModel[] = [{
        rows: [{
                cells: [
                    { index: 0, value: 'Order ID',  style: { fontWeight: 'bold' }},
                    { value: 'Customer ID', style: { fontWeight: 'bold' }},
                    { value: 'Employee ID', style: { fontWeight: 'bold' }},
                    { value: 'Ship Name', style: { fontWeight: 'bold' }},
                    { value: 'Ship City', style: { fontWeight: 'bold' }},
                    { value: 'Ship Address', style: { fontWeight: 'bold' }}
                ]
            },
            {
                cells: [
                    { value: '10248' },
                    { value: 'VINET' },
                    { value: '5' },
                    { value: 'Vins et alcools Chevalier' },
                    { value: 'Reims' },
                    { value: '59 rue de lAbbaye' }
                ]
            },
            {
                cells: [
                    { value: '10249' },
                    { value: 'TOMSP' },
                    { value: '6' },
                    { value: 'Toms Spezialitäten' },
                    { value: 'Münster' },
                    { value: 'Luisenstr. 48' }
                ]
            },
            {
                cells: [
                    { value: '10250' },
                    { value: 'HANAR' },
                    { value: '4' },
                    { value: 'Hanari Carnes' },
                    { value: 'Rio de Janeiro' },
                    { value: 'Rua do Paço, 67' }
                ]
            },
            {
                cells: [
                    { value: '10251' },
                    { value: 'VICTE' },
                    { value: '3' },
                    { value: 'Victuailles en stock' },
                    { value: 'Lyon' },
                    { value: '2, rue du Commerce' }
                ]
            }],
    columns: [
            { width: 80 }, { width: 80 }, { width: 82 },
            { width: 160 }, { width: 110 }, { width: 130 }
        ]
}];
//Initialize the Spreadsheet control
let spreadsheet: Spreadsheet = new Spreadsheet({
    sheets: sheet,
    allowSave: true,
    saveUrl: 'https://services.syncfusion.com/js/production/api/spreadsheet/save',
    beforeSave: (args: BeforeSaveEventArgs) => {
        // your code snippets here
    }
});
//Render the initialized Spreadsheet
spreadsheet.appendTo('#spreadsheet');
<!DOCTYPE html>
<html lang="en">

<head>
        <title>EJ2 SpreadSheet</title>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta name="description" content="Typescript UI Controls" />
        <meta name="author" content="Syncfusion" />
        <link rel="shortcut icon" href="resources/favicon.ico" />
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-inputs/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-lists/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-dropdowns/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-grids/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-spreadsheet/styles/material.css" rel="stylesheet" />
        <link href="styles.css" rel="stylesheet" />
        <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/shim.min.js"></script>
        <script src="system.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
       <!--Element which is going to render-->
       <div id='loader'>Loading....</div>
       <div id='container'>
       <div id="spreadsheet"></div>
       </div>
</body>

</html>

Please find the below table for the beforeSave event arguments.

Parameter	Type	Description
url	string	Specifies the save url.
fileName	string	Specifies the file name.
saveType	SaveType	Specifies the saveType like Xlsx, Xls, Csv and Pdf.
customParams	object	Passing the custom parameters from client to server while performing save operation.
isFullPost	boolean	It sends the form data from client to server, when set to true. It fetches the data from client to server and returns the data from server to client, when set to false.
needBlobData	boolean	You can get the blob data if set to true.
cancel	boolean	To prevent the save operations.

Use Ctrl + S keyboard shortcut to save the Spreadsheet data as Excel file.

The default value of allowSave property is true. For demonstration purpose, we have showcased the allowSave property in previous code snippet.

Demo purpose only, we have used the online web service url link.

Save an excel file as blob data

By default, the Spreadsheet control saves the Excel file and downloads it to the local file system. If you want to save an Excel file as blob data, you need to set needBlobData property to true and isFullPost property to false in the beforeSave event of the spreadsheet. Subsequently, you will receive the spreadsheet data as a blob in the saveComplete event. You can then post the blob data to the server endpoint for saving.

Please find below the code to retrieve blob data from the Spreadsheet control below.

index.ts
index.html
import { Spreadsheet, BeforeSaveEventArgs, SaveCompleteEventArgs } from '@syncfusion/ej2-spreadsheet';
import { data } from './datasource.ts';

let spreadsheet: Spreadsheet = new Spreadsheet({
  openUrl: 'https://services.syncfusion.com/js/production/api/spreadsheet/open',
  saveUrl: 'https://services.syncfusion.com/js/production/api/spreadsheet/save',
  sheets: [{
    name: 'Car Sales Report',
    ranges: [{ dataSource: data }],
    columns: [
      { width: 180 }, { width: 130 }, { width: 130 }, { width: 180 },
      { width: 130 }, { width: 120 }
    ]
  }],

  beforeSave: (args: BeforeSaveEventArgs): void => {
    args.needBlobData = true; // To trigger the saveComplete event.
    args.isFullPost = false; // Get the spreadsheet data as blob data in the saveComplete event.
  },

  saveComplete: (args: SaveCompleteEventArgs): void => {
    // To obtain the blob data
    console.log(args.blobData);
  }

});

spreadsheet.appendTo('#spreadsheet');
<!DOCTYPE html>
<html lang="en">

<head>
        <title>EJ2 SpreadSheet</title>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta name="description" content="Typescript UI Controls" />
        <meta name="author" content="Syncfusion" />
        <link rel="shortcut icon" href="resources/favicon.ico" />
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-inputs/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-lists/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-dropdowns/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-grids/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-spreadsheet/styles/material.css" rel="stylesheet" />
        <link href="styles.css" rel="stylesheet" />
        <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/shim.min.js"></script>
        <script src="system.config.js"></script>

<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
        <!--Element which is going to render-->
        <div id='loader'>Loading....</div>
        <div id='container'>
                <div id="spreadsheet"></div>
        </div>
</body>

</html>

Save an Excel file to a server

By default, the Spreadsheet control saves the Excel file and downloads it to the local file system. If you want to save an Excel file to a server location, you need to configure the server endpoint to convert the spreadsheet data into a file stream and save it to the server location. To do this, first, on the client side, you must convert the spreadsheet data into JSON format using the saveAsJson method and send it to the server endpoint. On the server endpoint, you should convert the received spreadsheet JSON data into a file stream using Syncfusion.EJ2.Spreadsheet.AspNet.Core, then convert the stream into an Excel file, and finally save it to the server location.

Client Side:

    // Convert the spreadsheet workbook to JSON data.
    spreadsheet.saveAsJson().then((json) => {
        const formData = new FormData();
        formData.append('FileName', "Sample");
        formData.append('saveType', 'Xlsx');
        // Passing the JSON data to perform the save operation.
        formData.append('JSONData', JSON.stringify(json.jsonObject.Workbook));
        formData.append('PdfLayoutSettings', JSON.stringify({ FitSheetOnOnePage: false }));
        // Using fetch to invoke the save process.
        fetch('https://localhost:{Your port number}/Home/Save', {
            method: 'POST',
            body: formData
        }).then((response) => {
            console.log(response);
        });
    });

Server Endpoint:

    public string Save(SaveSettings saveSettings)
    {
        ExcelEngine excelEngine = new ExcelEngine();
        IApplication application = excelEngine.Excel;
        try
        {
            
            // Save the workbook as stream.
            Stream fileStream = Workbook.Save<Stream>(saveSettings);
            // Using XLSIO, we are opening the file stream and saving the file in the server under "Files" folder.
            // You can also save the stream file in your server location.
            IWorkbook workbook = application.Workbooks.Open(fileStream);
            string basePath = _env.ContentRootPath + "\\Files\\" + saveSettings.FileName + ".xlsx";
            var file = System.IO.File.Create(basePath);
            fileStream.Seek(0, SeekOrigin.Begin);
            // To convert the stream to file options.
            fileStream.CopyTo(file);
            file.Dispose();
            fileStream.Dispose();
            return string.Empty;
        }
        catch (Exception ex)
        {
            return ex.Message;
        }
    }

You can find the server endpoint code to save the spreadsheet data as an Excel file in this attachment. After launching the server endpoint, you need to update the URL on the client side sample as shown below.

//To save an Excel file to the server.
fetch('https://localhost:{port number}/Home/Save')

Save an excel file using a hosted web service in AWS Lambda

Before proceeding with the save process, you should deploy the spreadsheet open/save web API service in AWS Lambda. To host the open/save web service in the AWS Lambda environment, please refer to the following KB documentation.

How to deploy a spreadsheet open and save web API service to AWS Lambda

After deployment, you will get the AWS service URL for the open and save actions. Before saving the Excel file with this hosted save URL, you need to prevent the default save action to avoid getting a corrupted excel file on the client end. The save service returns the file stream as a result to the client, which can cause the file to become corrupted. To prevent this, set the args.cancel value to true in the beforeSave event. After that, convert the spreadsheet data into JSON format using the saveAsJson method in the beforeSave event and send it to the save service endpoint URL using a fetch request.

On the server side, the save service will take the received JSON data, pass it to the workbook Save method, and return the result as a base64 string. The fetch success callback will receive the Excel file in base64 string format on the client side. Finally, you can then convert the base64 string back to a file on the client end to obtain a non-corrupted Excel file.

The following code example shows how to save an Excel file using a hosted web service in AWS Lambda, as mentioned above.

import { Spreadsheet } from '@syncfusion/ej2-spreadsheet';

let saveInitiated: boolean;
//Initialize Spreadsheet component
let spreadsheet: Spreadsheet = new Spreadsheet({
    sheets: [
    ],
    saveUrl:'https://xxxxxxxxxxxxxxxxxxxxxxxxx.amazonaws.com/Prod/api/spreadsheet/save',
    beforeSave: (eventArgs) => {
        if (!saveInitiated) {
            eventArgs.cancel = true; // Preventing default save action.
            saveInitiated = true; // The "beforeSave" event will trigger for "saveAsJson" action also, so we are preventing for the "saveAsJson".
            saveAsExcel(eventArgs);
        }
    }
});
const saveAsExcel = (eventArgs) => {
    // Convert the spreadsheet workbook to JSON data.
    spreadsheet.saveAsJson().then(Json => {
        saveInitiated = false;
        const formData = new FormData();
        // Passing the JSON data to server to perform save operation.
        formData.append('JSONData', JSON.stringify(Json.jsonObject.Workbook));
        formData.append('saveType', 'Xlsx');
        formData.append('fileName', 'Worksheet');
        formData.append('pdfLayoutSettings', '{"fitSheetOnOnePage":false,"orientation":"Portrait"}');
        // Using fetch API to invoke the server for save processing.
        fetch('https://xxxxxxxxxxxxxxxxxxxxxxxxx.amazonaws.com/Prod/api/spreadsheet/save', {
            method: 'POST', body: formData
        }).then(response => {
            if (response.ok) {
                return response.blob();
            }
        }).then(data => {
            const reader = new FileReader();
            reader.onload = function () {
                //Converts the result of the file reading operation into a base64 string.
                const textBase64Str = reader.result.toString();
                //Converts the base64 string into a Excel base64 string.
                const excelBase64Str = atob(textBase64Str.replace('data:text/plain;base64,', ''));
                //Converts the Excel base64 string into byte characters.
                const byteCharacters = atob(excelBase64Str.replace('data:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;base64,', ''));
                const byteArrays = [];
                for (let i = 0; i < byteCharacters.length; i++) {
                    byteArrays.push(byteCharacters.charCodeAt(i));
                }
                const byteArray = new Uint8Array(byteArrays);
                //creates a blob data from the byte array with xlsx content type.
                const blobData = new Blob([byteArray], { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' });
                const blobUrl = URL.createObjectURL(blobData);
                const anchor = document.createElement('a');
                anchor.download = 'Sample.xlsx';
                anchor.href = blobUrl;
                document.body.appendChild(anchor);
                anchor.click();
                URL.revokeObjectURL(blobUrl);
                document.body.removeChild(anchor);
            }
            reader.readAsDataURL(data);
        });
    });        
};

//Render initialized Spreadsheet component
spreadsheet.appendTo('#spreadsheet');

public string Save([FromForm]SaveSettings saveSettings)
{
    // This will return the Excel in base64 string format.
    return Workbook.Save<string>(saveSettings);
}

Save data as a Base64 string

In the Spreadsheet control, there is currently no direct option to save data as a Base64 string. You can achieve this by saving the Spreadsheet data as blob data and then converting that saved blob data to a Base64 string using FileReader.

You can get the Spreadsheet data as blob in the saveComplete event when you set the needBlobData as true and isFullPost as false in the beforeSave event.

The following code example shows how to save the spreadsheet data as base64 string.

index.ts
index.html
import { Spreadsheet, BeforeSaveEventArgs, SaveCompleteEventArgs } from '@syncfusion/ej2-spreadsheet';
import { data } from './datasource.ts';

let base64String: string | ArrayBuffer;

let spreadsheet: Spreadsheet = new Spreadsheet({
  openUrl: 'https://services.syncfusion.com/js/production/api/spreadsheet/open',
  sheets: [{
    name: 'Car Sales Report',
    ranges: [{ dataSource: data }],
    columns: [
      { width: 180 }, { width: 130 }, { width: 130 }, { width: 180 },
      { width: 130 }, { width: 120 }
    ]
  }],

  created: (): void => {
    //Applies cell and number formatting to specified range of the active sheet
    spreadsheet.cellFormat({ fontWeight: 'bold', textAlign: 'center', verticalAlign: 'middle' }, 'A1:F1');
  },

  beforeSave: (args: BeforeSaveEventArgs): void => {
    args.needBlobData = true; // To trigger the saveComplete event.
    args.isFullPost = false; // Get the spreadsheet data as blob data in the saveComplete event.
  },

  saveComplete: (args: SaveCompleteEventArgs): void => {
    // Convert blob data to base64 string.
    let reader: FileReader = new FileReader();
    reader.readAsDataURL(args.blobData);
    reader.onloadend = function () {
      base64String = reader.result ? reader.result : '';
    };
  }

});

spreadsheet.appendTo('#spreadsheet');

document.getElementById("import")!.onclick = (): void => {
  // Open the file based on saved base64 string.
  fetch(base64String as string)
    .then((response) => response.blob())
    .then((fileBlob) => {
      let file = new File([fileBlob], 'Sample.xlsx');
      spreadsheet.open({ file: file });
    });
}

document.getElementById("export")!.onclick = (): void => {
  spreadsheet.save({
    url: 'https://services.syncfusion.com/js/production/api/spreadsheet/save',
    fileName: 'Worksheet',
    saveType: 'Xlsx',
  }); // Specifies the save URL, file name, file type need to be saved.
  // Logs base64 string into the console.
  console.log('Base64 String - ', base64String);
}
<!DOCTYPE html>
<html lang="en">

<head>
        <title>EJ2 SpreadSheet</title>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta name="description" content="Typescript UI Controls" />
        <meta name="author" content="Syncfusion" />
        <link rel="shortcut icon" href="resources/favicon.ico" />
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-inputs/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-lists/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-dropdowns/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-grids/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-spreadsheet/styles/material.css" rel="stylesheet" />
        <link href="styles.css" rel="stylesheet" />
        <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/shim.min.js"></script>
        <script src="system.config.js"></script>

<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
        <!--Element which is going to render-->
        <div id='loader'>Loading....</div>
        <div id='container'>
                <button class="e-btn custom-btn" id="import">Import Base64</button>
                <button class="e-btn custom-btn" id="export">Export as Base64</button>
                <div id="spreadsheet"></div>
        </div>
</body>

</html>

Configure JSON serialization options

Previously, when saving the Spreadsheet as a workbook JSON object using the saveAsJson method, the entire workbook with all loaded features were processed and saved as a JSON object.

Now, you have the option to selectively ignore some features while saving the Spreadsheet as a JSON object by configuring serialization options and passing them as arguments to the saveAsJson method. This argument is optional, and if not configured, the entire workbook JSON object will be saved without ignoring any features.

spreadsheet.saveAsJson({ onlyValues: true });

Options	Description
onlyValues	If true, includes only the cell values in the JSON output.
ignoreStyle	If true, excludes styles from the JSON output.
ignoreFormula	If true, excludes formulas from the JSON output.
ignoreFormat	If true, excludes number formats from the JSON output.
ignoreConditionalFormat	If true, excludes conditional formatting from the JSON output.
ignoreValidation	If true, excludes data validation rules from the JSON output.
ignoreFreezePane	If true, excludes freeze panes from the JSON output.
ignoreWrap	If true, excludes text wrapping settings from the JSON output.
ignoreChart	If true, excludes charts from the JSON output.
ignoreImage	If true, excludes images from the JSON output.
ignoreNote	If true, excludes notes from the JSON output.

The following code snippet demonstrates how to configure the serialization options and pass them as arguments to the saveAsJson method:

index.ts
index.html
import { Spreadsheet, BeforeOpenEventArgs, SerializationOptions } from '@syncfusion/ej2-spreadsheet';
import { createElement } from '@syncfusion/ej2-base';

//Initialize the Spreadsheet control
let spreadsheet: Spreadsheet = new Spreadsheet({
    allowOpen: true,
    openUrl: 'https://services.syncfusion.com/js/production/api/spreadsheet/open',
    beforeOpen: (args: BeforeOpenEventArgs) => {
        // your code snippets here
    }
});

//Render the initialized Spreadsheet
spreadsheet.appendTo('#spreadsheet');

const saveElement: HTMLElement | null = document.getElementById("save");
if (saveElement) {
    // Save button click event listener
    saveElement.onclick = () => {
        const valueOnlyCheckbox: boolean = (document.getElementById("valueOnly") as HTMLInputElement).checked;
        const options: SerializationOptions = valueOnlyCheckbox ? { onlyValues: true } : createOptions();
        spreadsheet.saveAsJson(options).then((response: any) => {
            const formData: FormData = new FormData();
            formData.append(
                'JSONData',
                JSON.stringify(response.jsonObject.Workbook)
            );
            formData.append('fileName', 'Sample');
            formData.append('saveType', 'Xlsx');
            formData.append('pdfLayoutSettings', JSON.stringify({ fitSheetOnOnePage: false, orientation: 'Portrait' })),
                fetch(
                    'https://services.syncfusion.com/js/production/api/spreadsheet/save',
                    {
                        method: 'POST',
                        body: formData,
                    }
                ).then((response) => {
                    response.blob().then((data) => {
                        const anchor: any = createElement('a', {
                            attrs: { download: 'Sample.xlsx' },
                        });
                        const url = URL.createObjectURL(data);
                        anchor.href = url;
                        document.body.appendChild(anchor);
                        anchor.click();
                        URL.revokeObjectURL(url);
                        document.body.removeChild(anchor);
                    });
                });
        });
    };
}

function createOptions(): SerializationOptions {
    const options: SerializationOptions = {};
    options.ignoreStyle = (document.getElementById('style') as HTMLInputElement).checked;
    options.ignoreFormula = (document.getElementById('formula') as HTMLInputElement).checked;
    options.ignoreFormat = (document.getElementById('format') as HTMLInputElement).checked;
    options.ignoreConditionalFormat = (document.getElementById('cf') as HTMLInputElement).checked;
    options.ignoreValidation = (document.getElementById('dv') as HTMLInputElement).checked;
    options.ignoreFreezePane = (document.getElementById('freeze') as HTMLInputElement).checked;
    options.ignoreWrap = (document.getElementById('wrap') as HTMLInputElement).checked;
    options.ignoreChart = (document.getElementById('chart') as HTMLInputElement).checked;
    options.ignoreImage = (document.getElementById('image') as HTMLInputElement).checked;
    options.ignoreNote = (document.getElementById('note') as HTMLInputElement).checked;
    return options;
}

function toggleCheckboxes(): void {
    const valueOnlyCheckbox: HTMLInputElement = document.getElementById('valueOnly') as HTMLInputElement;
    const checkboxes: NodeListOf<Element> = document.querySelectorAll('#Saveasjson input[type="checkbox"]:not(#valueOnly)');
    checkboxes.forEach(checkbox => {
        (checkbox as HTMLInputElement).disabled = valueOnlyCheckbox.checked;
        if (valueOnlyCheckbox.checked) {
            (checkbox as HTMLInputElement).checked = false;
        }
    });
}

const valueOnlyElement: HTMLElement | null = document.getElementById('valueOnly');
if (valueOnlyElement) {
    valueOnlyElement.addEventListener('change', toggleCheckboxes);
}
<!DOCTYPE html>
<html lang="en">

<head>
        <title>EJ2 SpreadSheet</title>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta name="description" content="Typescript UI Controls" />
        <meta name="author" content="Syncfusion" />
        <link rel="shortcut icon" href="resources/favicon.ico" />
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-inputs/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-lists/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-dropdowns/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-grids/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-spreadsheet/styles/material.css" rel="stylesheet" />
        <link href="styles.css" rel="stylesheet" />
        <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/shim.min.js"></script>
        <script src="system.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
       <!--Element which is going to render-->
       <div id='loader'>Loading....</div>
       <div id='container'>
        <div id="Saveasjson">
                <label id="Heading">Save As Json Options:</label> <br>
                <input type="checkbox" id="valueOnly"><label for="valueOnly">Only Values</label>
                <input type="checkbox" id="style"><label for="style">Ignore Style</label>
                <input type="checkbox" id="formula"><label for="formula">Ignore Formula</label>
                <input type="checkbox" id="format"><label for="format">Ignore Format</label>
                <input type="checkbox" id="cf"><label for="cf">Ignore CF</label>
                <input type="checkbox" id="dv"><label for="dv">Ignore Validation</label>
                <input type="checkbox" id="freeze"><label for="freeze">Ignore Freezepane</label>
                <input type="checkbox" id="wrap"><label for="wrap">Ignore Wrap</label>
                <input type="checkbox" id="chart"><label for="chart">Ignore Chart</label>
                <input type="checkbox" id="image"><label for="image">Ignore Image</label>
                <input type="checkbox" id="note"><label for="note">Ignore Note</label>
                <button id="save">Save with JSON Serialization</button>
        </div>
       <div id="spreadsheet"></div>
       </div>
</body>

</html>

Send and receive custom params from client to server

Passing the custom parameters from client to server by using beforeSave event.

index.ts
index.html
import { Spreadsheet } from '@syncfusion/ej2-spreadsheet';
import { data } from './datasource.ts';

//Initialize the SpreadSheet control
let spreadsheet: Spreadsheet = new Spreadsheet({
  sheets: [{
                ranges: [{ dataSource: data }],
                columns: [{ width: 80 }, { width: 80 },{ width: 80},
                          { width: 160 }, { width: 100 }, {width: 150}]
            }],
            saveUrl: 'https://services.syncfusion.com/js/production/api/spreadsheet/save',
            beforeSave: (args: BeforeSaveEventArgs) => {
               args.customParams = { customParams: 'you can pass custom params in server side'}; // you can pass the custom params
            }
  }
});
spreadsheet.appendTo('#spreadsheet');
<!DOCTYPE html>
<html lang="en">

<head>
        <title>EJ2 SpreadSheet</title>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta name="description" content="Typescript UI Controls" />
        <meta name="author" content="Syncfusion" />
        <link rel="shortcut icon" href="resources/favicon.ico" />
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-inputs/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-lists/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-dropdowns/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-grids/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-spreadsheet/styles/material.css" rel="stylesheet" />
        <link href="styles.css" rel="stylesheet" />
        <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/shim.min.js"></script>
        <script src="system.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
       <!--Element which is going to render-->
       <div id='loader'>Loading....</div>
       <div id='container'>
       <div id="spreadsheet"></div>
       </div>
</body>

</html>

Server side code snippets:

    public IActionResult Save(SaveSettings saveSettings, string customParams)
        {
            Console.WriteLine(customParams); // you can get the custom params in controller side
            return Workbook.Save(saveSettings);
        }

Add custom header during save

You can add your own custom header to the save action in the Spreadsheet. For processing the data, it has to be sent from client to server side and adding customer header can provide privacy to the data with the help of Authorization Token. Through the fileMenuItemSelect event, the custom header can be added to the request during save action.

index.ts
index.html
import { createElement } from '@syncfusion/ej2-base';
import { Spreadsheet, SheetModel } from '@syncfusion/ej2-spreadsheet';

import {
  MenuSelectEventArgs,
} from '@syncfusion/ej2-spreadsheet';

let sheet: SheetModel[] = [{
  rows: [{
    cells: [
      { index: 0, value: 'Order ID', style: { fontWeight: 'bold' } },
      { value: 'Customer ID', style: { fontWeight: 'bold' } },
      { value: 'Employee ID', style: { fontWeight: 'bold' } },
      { value: 'Ship Name', style: { fontWeight: 'bold' } },
      { value: 'Ship City', style: { fontWeight: 'bold' } },
      { value: 'Ship Address', style: { fontWeight: 'bold' } }
    ]
  },
  {
    cells: [
      { value: '10248' },
      { value: 'VINET' },
      { value: '5' },
      { value: 'Vins et alcools Chevalier' },
      { value: 'Reims' },
      { value: '59 rue de lAbbaye' }
    ]
  },
  {
    cells: [
      { value: '10249' },
      { value: 'TOMSP' },
      { value: '6' },
      { value: 'Toms Spezialitäten' },
      { value: 'Münster' },
      { value: 'Luisenstr. 48' }
    ]
  },
  {
    cells: [
      { value: '10250' },
      { value: 'HANAR' },
      { value: '4' },
      { value: 'Hanari Carnes' },
      { value: 'Rio de Janeiro' },
      { value: 'Rua do Paço, 67' }
    ]
  },
  {
    cells: [
      { value: '10251' },
      { value: 'VICTE' },
      { value: '3' },
      { value: 'Victuailles en stock' },
      { value: 'Lyon' },
      { value: '2, rue du Commerce' }
    ]
  }],
  columns: [
    { width: 80 }, { width: 80 }, { width: 82 },
    { width: 160 }, { width: 110 }, { width: 130 }
  ]
}];
//Initialize the Spreadsheet control
let spreadsheet: Spreadsheet = new Spreadsheet({
  sheets: sheet,
  openUrl: 'https://services.syncfusion.com/js/production/api/spreadsheet/open',
  saveUrl: 'https://services.syncfusion.com/js/production/api/spreadsheet/save',
  fileMenuItemSelect: (args: MenuSelectEventArgs) => {
    if (args.item.text === 'Microsoft Excel') {
      args.cancel = true;
      spreadsheet.saveAsJson().then((response) => {
        var formData = new FormData();
        formData.append(
          'JSONData',
          JSON.stringify(response.jsonObject.Workbook)
        );
        formData.append('fileName', 'Sample');
        formData.append('saveType', 'Xlsx');
        formData.append('pdfLayoutSettings', JSON.stringify({ fitSheetOnOnePage: false, orientation: 'Portrait' })),
        fetch(
          'https://services.syncfusion.com/js/production/api/spreadsheet/save',
          {
            method: 'POST',
            headers: { Authorization: 'YOUR TEXT' },
            body: formData,
          }
        ).then((response) => {
          response.blob().then((data) => {
            var anchor = createElement('a', {
              attrs: { download: 'Sample.xlsx' },
            });
            var url = URL.createObjectURL(data);
            anchor.href = url;
            document.body.appendChild(anchor);
            anchor.click();
            URL.revokeObjectURL(url);
            document.body.removeChild(anchor);
          });
        });
      });
    }
  },
});
//Render the initialized Spreadsheet
spreadsheet.appendTo('#spreadsheet');
<!DOCTYPE html>
<html lang="en">

<head>
        <title>EJ2 SpreadSheet</title>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta name="description" content="Typescript UI Controls" />
        <meta name="author" content="Syncfusion" />
        <link rel="shortcut icon" href="resources/favicon.ico" />
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-inputs/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-lists/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-dropdowns/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-grids/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-spreadsheet/styles/material.css" rel="stylesheet" />
        <link href="styles.css" rel="stylesheet" />
        <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/shim.min.js"></script>
        <script src="system.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
       <!--Element which is going to render-->
       <div id='loader'>Loading....</div>
       <div id='container'>
       <div id="spreadsheet"></div>
       </div>
</body>

</html>

Change the PDF orientation

By default, the PDF document is created in Portrait orientation. You can change the orientation of the PDF document by using the args.pdfLayoutSettings.orientation argument settings in the beforeSave event.

The possible values are:

Portrait - Used to display content in a vertical layout.
Landscape - Used to display content in a horizontal layout.

index.ts
index.html
import { Spreadsheet, BeforeSaveEventArgs } from '@syncfusion/ej2-spreadsheet';
import { data } from './datasource.ts';

//Initialize the SpreadSheet control
let spreadsheet: Spreadsheet = new Spreadsheet({
  sheets: [{
    ranges: [{ dataSource: data }],
    columns: [{ width: 80 }, { width: 80 }, { width: 80 },
    { width: 160 }, { width: 100 }, { width: 150 }]
  }],
  saveUrl: 'https://services.syncfusion.com/js/production/api/spreadsheet/save',
  beforeSave: (args: BeforeSaveEventArgs) => {
    args.pdfLayoutSettings.orientation = 'Landscape'; // You can change the orientation of the PDF document
  }
});

spreadsheet.appendTo('#spreadsheet');
<!DOCTYPE html>
<html lang="en">

<head>
        <title>EJ2 SpreadSheet</title>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta name="description" content="Typescript UI Controls" />
        <meta name="author" content="Syncfusion" />
        <link rel="shortcut icon" href="resources/favicon.ico" />
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-inputs/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-lists/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-dropdowns/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-grids/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-spreadsheet/styles/material.css" rel="stylesheet" />
        <link href="styles.css" rel="stylesheet" />
        <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/shim.min.js"></script>
        <script src="system.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
       <!--Element which is going to render-->
       <div id='loader'>Loading....</div>
       <div id='container'>
       <div id="spreadsheet"></div>
       </div>
</body>

</html>

Supported file formats

The following list of Excel file formats are supported in Spreadsheet:

MS Excel (.xlsx)
MS Excel 97-2003 (.xls)
Comma Separated Values (.csv)
Portable Document Format (.pdf)

Methods

To save the Spreadsheet document as an xlsx, xls, csv, or pdf file, by using save method should be called with the url, fileName and saveType as parameters. The following code example shows to save the spreadsheet file as an xlsx, xls, csv, or pdf in the button click event.

index.ts
index.html
import { Spreadsheet, ColumnModel } from '@syncfusion/ej2-spreadsheet';
import { data } from './datasource.ts';
import { DropDownButton, ItemModel } from "@syncfusion/ej2-splitbuttons";

//Initialize action items.
let items: ItemModel[] = [
  {
    text: "Save As xlsx"
  },
  {
    text: "Save As xls"
  },
  {
    text: "Save As csv"
  },
  {
    text: "Save As pdf"
  }
];

// Initialize the DropDownButton component.
let drpDownBtn: DropDownButton = new DropDownButton({
  items: items,
  cssClass: "e-round-corner",
  select: (args: MenuEventArgs) => {
    if (args.item.text === 'Save As xlsx')
      spreadsheet.save({url: 'https://services.syncfusion.com/js/production/api/spreadsheet/save', fileName: "Sample", saveType: "Xlsx"});
    if (args.item.text === 'Save As xls')
      spreadsheet.save({url: 'https://services.syncfusion.com/js/production/api/spreadsheet/save', fileName: "Sample", saveType: "Xls"});
    if (args.item.text === 'Save As csv')
      spreadsheet.save({url: 'https://services.syncfusion.com/js/production/api/spreadsheet/save',fileName: "Sample", saveType: "Csv"});
    if (args.item.text === 'Save As pdf')
      spreadsheet.save({url: 'https://services.syncfusion.com/js/production/api/spreadsheet/save',fileName: "Sample", saveType: "Pdf"});
  }
});

// Render initialized DropDownButton.
drpDownBtn.appendTo("#element");


let columns: ColumnModel[] = [{ width: 100 }, { width: 130 },{ width: 96},
    { width: 130 }, { width: 130 },{ width: 96},
    { width: 100 }, { width: 100 },{ width: 110}, { width: 100 }, { width: 130 },{ width: 150}]

let spreadsheet: Spreadsheet = new Spreadsheet({
    sheets: [{ ranges: [{ dataSource: data }], columns: columns }],
    allowSave: true
});

//Render the initialized Spreadsheet.
spreadsheet.appendTo('#spreadsheet');
<!DOCTYPE html>
<html lang="en">

<head>
        <title>EJ2 SpreadSheet</title>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta name="description" content="Typescript UI Controls" />
        <meta name="author" content="Syncfusion" />
        <link rel="shortcut icon" href="resources/favicon.ico" />
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-inputs/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-lists/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-navigations/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-dropdowns/styles/material.css" rel="stylesheet" />
        <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-spreadsheet/styles/material.css" rel="stylesheet" />
        <link href="styles.css" rel="stylesheet" />
        <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/shim.min.js"></script>
        <script src="system.config.js"></script>
        <script src="es5-datasource.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
       <!--Element which is going to render-->
       <div id='loader'>Loading....</div>
       <button id='element'>Save</button>
       <div id='container'>
       <div id="spreadsheet"></div>
       </div>
</body>

</html>

Server Configuration

Import and export are processed in server-side using Spreadsheet server library. The following code snippets shows server configuration using WebAPI service,

    [Route("api/[controller]")]
    public class SpreadsheetController : Controller
    {
        //To open excel file
        [AcceptVerbs("Post")]
        [HttpPost]
        [EnableCors("AllowAllOrigins")]
        [Route("Open")]
        public IActionResult Open(IFormCollection openRequest)
        {
            OpenRequest open = new OpenRequest();
            open.File = openRequest.Files[0];
            return Content(Workbook.Open(open));
        }

        //To save as excel file
        [AcceptVerbs("Post")]
        [HttpPost]
        [EnableCors("AllowAllOrigins")]
        [Route("Save")]
        public IActionResult Save([FromForm]SaveSettings saveSettings)
        {
            return Workbook.Save(saveSettings);
        }
    }

Server Dependencies

Open and save helper functions are shipped in the Syncfusion.EJ2.Spreadsheet package, which is available in Essential Studio and nuget.org. Following list of dependencies required for Spreadsheet open and save operations.

Syncfusion.EJ2
Syncfusion.EJ2.Spreadsheet
Syncfusion.Compression.Base
Syncfusion.XlsIO.Base

And also refer this for more information.

Open save in EJ2 TypeScript Spreadsheet control

Open

Open an excel file using a file uploader

Open an external URL excel file while initial load

Open an excel file from blob data

Open an Excel file located on a server

Open an excel file using a hosted web service in AWS Lambda

Open an excel file from Base64 string data

Open excel file into a read-only mode

Configure JSON deserialization options

Chunk response processing

Add custom header during open

External workbook confirmation dialog

Supported file formats

Save

Save an excel file as blob data

Save an Excel file to a server

Save an excel file using a hosted web service in AWS Lambda

Save data as a Base64 string

Configure JSON serialization options

Send and receive custom params from client to server

Add custom header during save

Change the PDF orientation

Supported file formats

Methods

Server Configuration

Server Dependencies

See Also