Merge Excel cells in C#, VB.NET

Syncfusion® Excel (XlsIO) library is a .NET Excel library used to create, read, and edit Excel documents. Using this library, you can merge Excel cells in C# and VB.NET.

Merged cell is a single cell created by combining or merging two or more individual cells together. It is easy to merge the cells by using the Merge() method associated with the IRange.

Steps to add an image to an Excel header programmatically:

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

Create a new C# console application

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

Install NuGet package

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

C#

using Syncfusion.XlsIO;

VB.NET

Imports Syncfusion.XlsIO

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

C#

// 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];
 
  worksheet.Range["C6"].HorizontalAlignment = ExcelHAlign.HAlignCenter;
 
  worksheet.Range["C6"].Text = "Merging the cells in XlsIO";
 
  // Merge the Cells
  worksheet.Range["C6:H6"].Merge();
  
  // 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 the first worksheet from the workbook instance
  Dim worksheet As IWorksheet = workbook.Worksheets(0)
 
  worksheet.Range("C6").HorizontalAlignment = ExcelHAlign.HAlignCenter
 
  worksheet.Range("C6").Text = "Merging the cells in XlsIO"
            
  'Merge the Cells
  worksheet.Range("C6:H6").Merge()
 
  'Save the workbook to disk in xlsx format
  workbook.SaveAs("Output.xlsx")
 
End Using

A complete working example of how to add image to Excel header in C#/VB.NET can be downloaded from Merge-Excel-Cells.zip.

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

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.

Take a moment to peruse the documentation where you can find basic Excel document processing options along with the features like import and export data, chart, formulas, conditional formatting, data validation, tables, pivot tables and, protect the Excel documents, and most importantly, the PDF, CSV and Image conversions with code examples.

Conclusion

I hope you enjoyed learning about Merge Excel cells in C#, VB.NET.

You can refer to our XIsIO’s feature tour page to learn about its other groundbreaking features. Explore our UG documentation and online demos to understand how to manipulate data in Excel documents.

If you are an existing user, you can access our latest components from the License and Downloads page. For new users, you can try our 30-day free trial to check out XlsIO and other Syncfusion® components.

If you have any queries or require clarification, please let us know in the comments below or contact us through our support forums, Support Tickets, or feedback portal. We are always happy to assist you!