Write to Excel file in C#, VB.NET

2 mins read

Syncfusion® Excel (XlsIO) library is a .NET Excel library used to create, read, and edit Excel documents. Using this library, you can create an Excel document and write data into an Excel worksheet in C# and VB.NET.

Steps to write data into an Excel file programmatically:

Step 1: Create a new C# console application project.

Create Console application in Visual Studio

Create a new C# console application

Step 2: Install the Syncfusion.XlsIO.WinForms package as a reference to your .NET Framework applications from NuGet.org.

Add XlsIO reference to the project

Install NuGet package

Step 3: Include the following namespace in the Program.cs file.

using Syncfusion.XlsIO;

VB.NET

Imports Syncfusion.XlsIO

Step 4: Add the following code snippet to create an Excel file with simple text.

// Create an instance of ExcelEngine
using (ExcelEngine excelEngine = new ExcelEngine())
{
  // Set the default application version as Excel 2016
  excelEngine.Excel.DefaultVersion = ExcelVersion.Excel2016;
 
  // Create a workbook with a worksheet
  IWorkbook workbook = excelEngine.Excel.Workbooks.Create(1);
 
  // Access the first worksheet from the workbook instance
  IWorksheet worksheet = workbook.Worksheets[0];
 
  // Insert sample text into cell “A1”
  worksheet.Range["A1"].Text = "Hello World";
 
  // Save the workbook to disk in xlsx format
  workbook.SaveAs("Output.xlsx");
}

VB.NET

'Create an instance of ExcelEngine
Using excelEngine As ExcelEngine = New ExcelEngine
 
  'Set the default application version as Excel 2016
  excelEngine.Excel.DefaultVersion = ExcelVersion.Excel2016
 
  'Create a workbook with a worksheet
  Dim workbook As IWorkbook = excelEngine.Excel.Workbooks.Create(1)
 
  'Access first worksheet from the workbook instance
  Dim worksheet As IWorksheet = workbook.Worksheets(0)
 
  'Insert sample text into cell “A1”
  worksheet.Range("A1").Text = "Hello World"
 
  'Save the workbook to disk in xlsx format
  workbook.SaveAs("Output.xlsx")
 
End Using

A complete working example to write data to an Excel file can be downloaded from Write to Excel file.zip

By executing the program, you will get the output Excel file as shown below.

Write Data to Excel File

Output Excel document

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 with code examples.

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

An online sample link to generate Excel file.

Write to Excel file in C#, VB.NET

Steps to write data into an Excel file programmatically:

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