Delete Excel rows and columns in C#, VB.NET

Syncfusion Excel (XlsIO) library is a .NET Excel library used to create, read, and edit Excel documents. Also, converts Excel documents to PDF files. Using this library, you can delete Excel rows and columns in C#, VB.NET.

The statement IWorksheet.DeleteRow(int index, int count) is meant for deleting the Excel rows. Similarly, the statement IWorksheet.DeleteColumn(int index, int count) is meant for deleting the Excel columns. DeleteRow method or DeleteColumn method contains two arguments which are used to delete Excel rows and columns as explained below.

• Index - Starting position of the Excel rows or Excel columns to be deleted.
• Count - Number of Excel rows or Excel columns to be deleted from the mentioned index.

‘DeleteRow’ and ‘DeleteColumn’ methods take input in one based index. Hence, to delete Excel rows starting from 3^rd row, you must use worksheet.DeleteRow(3, 5); which deletes five rows (rows 3,4,5,6 and 7). Similarly, to delete Excel columns starting from 5^th column, ‘’, you must use worksheet.DeleteColumn(5, 2); which deletes two columns (columns 5 and 6).

Steps to delete Excel rows and columns, 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 reference to your .NET Framework application from 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 delete Excel rows and columns in C#, VB.NET.

C#

using (ExcelEngine excelEngine = new ExcelEngine())
{
    //Instantiate the application object
    IApplication application = excelEngine.Excel;
 
    //Add a workbook
    IWorkbook workbook = application.Workbooks.Open("DeleteRowsAndColumnsTemplate.xlsx", ExcelOpenType.Automatic);
 
    //The first worksheet object in the worksheets collection is accessed
    IWorksheet worksheet = workbook.Worksheets[0];
 
    //Delete Excel rows
    worksheet.DeleteRow(3, 5);                
 
    //Delete Excel columns
    worksheet.DeleteColumn(5, 2);
 
    //Save the workbook
    workbook.SaveAs("Output.xlsx");
}
 

VB.NET

Using excelEngine As ExcelEngine = New ExcelEngine()
    'Instantiate the application object
    Dim application As IApplication = excelEngine.Excel
 
    'Add a workbook
    Dim workbook As IWorkbook = application.Workbooks.Open("../../Data/DeleteRowsandColumnsTemplate.xlsx", ExcelOpenType.Automatic)
 
    'The first worksheet object in the worksheets collection is accessed
    Dim worksheet As IWorksheet = workbook.Worksheets(0)
 
    'Delete Excel rows
    worksheet.DeleteRow(3, 5)
 
    'Delete Excel columns
    worksheet.DeleteColumn(5, 2)
 
    'Save the workbook
    workbook.SaveAs("Output.xlsx")
End Using

A complete Windows Forms working example of how to delete Excel rows and columns in C# and VB can be downloaded from Delete Excel Rows And Columns.zip.

By executing the program, you will get the output Excel document as shown below:

Output Excel document

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

See Also:

Insert Excel rows and columns in C#, VB.NET

How do I group Rows and Columns

Why formulas are not updated when inserting rows?

How to delete Excel chart legend in C#, VB.NET?

How to UnFreeze the Rows and Columns in XlsIO