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How to create an Excel file in Xamarin.Android?

Platform: WinForms |
Control: XlsIO

Syncfusion Excel (XlsIO) library is a .NET Excel library used to create, read, and edit Excel documents. Using this library, you can start creating an Excel document in Xamarin.Android.

Steps to create Excel file programmatically:

Step 1: Create a new C# Xamarin Android application project.

Create Xamarin.Android application in Visual Studio

Create a new C# Xamarin Android App

Step 2: Select a project template and minimum android version for the application.

Select Xamarin.Android project template and android version

Select minimum android version

Step 3: Install Syncfusion.Xamarin.XlsIO NuGet package as a reference to the .NET Standard project in your Xamarin applications from NuGet.org.

Add XlsIO reference to the project

Install NuGet package

Step 4: In Main.axml add the new button and define the click event to generate the Excel file.

i)In Main.axml page add the following code to add the button




ii)In MainActivity.cs file add the following code to define the click event to generate Excel file.


protected override void OnCreate(Bundle savedInstanceState)
  // Set our view from the "main" layout resource
  Button button = FindViewById<Button>(Resource.Id.MyButton);
  button.Text = "Create Excel";
  button.Click += OnButtonClicked;


Step 5: Include the following namespace in the MainActivity.cs file.


using Syncfusion.XlsIO;


Step 6: In the click event method (OnButtonClicked) add the following code to create an Excel file and save it in a stream.


void OnButtonClicked(object sender, EventArgs args)
  //Create an instance of ExcelEngine.
  using (ExcelEngine excelEngine = new ExcelEngine())
    //Set the default application version as Excel 2013.
    excelEngine.Excel.DefaultVersion = ExcelVersion.Excel2013;
    //Create a workbook with a worksheet
    IWorkbook workbook = excelEngine.Excel.Workbooks.Create(1);
    //Access first worksheet from the workbook instance.
    IWorksheet worksheet = workbook.Worksheets[0];
    //Adding text to a cell
    worksheet.Range["A1"].Text = "Hello World";
    //Save the workbook to stream in xlsx format. 
    MemoryStream stream = new MemoryStream();
    //Save the stream as a file in the device and invoke it for viewing
    SaveAndroid androidSave = new SaveAndroid();
    androidSave.SaveAndView("CreateExcel.xlsx", "application/msexcel", stream,this);


Step 7: Add the SaveAndroid class to the project where the stream will be saved to a physical file and the file can be opened for viewing.

The code for SaveAndroid class has been given below.


class SaveAndroid
  //Method to save document as a file in Android and view the saved document
  public async Task SaveAndView(string fileName, String contentType, MemoryStream stream, AppCompatActivity activity)
    string root = null;
    //Get the root path in android device.
    if (Android.OS.Environment.IsExternalStorageEmulated)
      root = Android.OS.Environment.ExternalStorageDirectory.ToString();
        root = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
    //Create directory and file 
    Java.IO.File myDir = new Java.IO.File(root + "/Syncfusion");
    Java.IO.File file = new Java.IO.File(myDir, fileName);
    //Remove if the file exists
    if (file.Exists()) file.Delete();
    //Write the stream into the file
    FileOutputStream outs = new FileOutputStream(file);
    //Invoke the created file for viewing
    if (file.Exists())
      Android.Net.Uri path = Android.Net.Uri.FromFile(file);
      string extension = Android.Webkit.MimeTypeMap.GetFileExtensionFromUrl(Android.Net.Uri.FromFile(file).ToString());
      string mimeType = Android.Webkit.MimeTypeMap.Singleton.GetMimeTypeFromExtension(extension);
      Intent intent = new Intent(Intent.ActionView);
      intent.SetDataAndType(path, mimeType);
      activity.StartActivity(Intent.CreateChooser(intent, "Choose App"));


Step 8: Compile and execute the application. Now this application creates a simple Excel document.


For the Excel document to be read and written in the android device, the storage permission must be given for the deployed application. To read/write with the external storage location enable the required permissions in Android Manifest.

Read and Write permissions enabled for Xamarin.Android application

Enable permissions in Android Manifest

A complete working example to create Excel file in Xamarin.Andriod can be downloaded from Create Excel file.zip.

Take a moment to peruse the documentation, where you can find basic worksheet data manipulation options along with features like Conditional Formatting, worksheet calculations through Formulas, adding Charts in worksheet or workbook, organizing and analyzing data through Tables and Pivot Tables, appending multiple records to worksheet using Template Markers, and most importantly PDF and Image conversions etc. with code examples.

Refer here to explore the rich set of Syncfusion Excel (XlsIO) library features.

An online sample link to generate Excel file.

See Also:

Create a Excel file in ASP.NET MVC

Create a Excel file in ASP.NET Core

Create a Excel file in Windows Forms

Create a Excel file in WPF


Starting with v16.2.0.x, if you reference Syncfusion assemblies from trial setup or from the NuGet feed, include a license key in your projects. Refer the link to learn about generating and registering Syncfusion license key in your application to use the components without trail message.


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