Create Named Range in Excel

8 Dec 20234 minutes to read

Users can provide names to a specific cell, a range of cells, function, constant, or table. Instead of using the cell reference, you can simply use the name assigned to the cell. By using names, you can make the formulas much easier to understand and maintain.

The following code shows how to create named range in Excel with Interop and XlsIO for .NET.

Interop

C#

private void CreateNamedRange()
{
  //Instantiate the application object
  var excelApp = new Microsoft.Office.Interop.Excel.Application();

  //Add a workbook
  Workbook workbook = excelApp.Workbooks.Add(System.Reflection.Missing.Value);

  //Get the first sheet
  Worksheet worksheet = (Worksheet)workbook.Sheets["Sheet1"];

  //Create a named range
  Range range = (Range)worksheet.get_Range("A1:B4", Type.Missing);
  range.Name = "Test_Range";
  worksheet.Range["Test_Range"].Value = "Test";

  //Save the file
  workbook.SaveCopyAs("InteropOutput_NamedRange.xlsx");

  //Quit the application
  excelApp.Quit();
}

VB.NET

Private Sub CreateNamedRange()
  'Instantiate the application object
  Dim excelApp = New Microsoft.Office.Interop.Excel.Application()

  'Add a workbook
  Dim workbook As Workbook = excelApp.Workbooks.Add(System.Reflection.Missing.Value)

  'Get the first sheet
  Dim worksheet As Worksheet = workbook.Sheets("Sheet1")

  'Create a named range
  Dim range As Range = CType(worksheet.Range("A1:B4"), Range)
  range.Name = "Test_Range"
  worksheet.Range("Test_Range").Value = "Test"

  'Save the file
  workbook.SaveCopyAs("InteropOutput_NamedRange.xlsx")

  'Quit the application
  excelApp.Quit()
End Sub

XlsIO

C#

private void CreateNamedRange()
{
  using (ExcelEngine excelEngine = new ExcelEngine())
  {
    //Instantiate the application object
    IApplication application = excelEngine.Excel;

    //Create a workbook
    IWorkbook workbook = application.Workbooks.Create(1);

    //Get the first sheet
    IWorksheet worksheet = workbook.Worksheets[0];

    //Create a named range
    IName name = workbook.Names.Add("Test_Range");
    name.RefersToRange = worksheet.Range["A1:B4"];
    worksheet.Range["Test_Range"].Text = "Test";

    //Save the workbook
    workbook.SaveAs("XlsIOOutput_NamedRange.xlsx");
  }
}

VB.NET

Private Sub CreateNamedRange()
  Using excelEngine As ExcelEngine = New ExcelEngine()
    'Instantiate the application object
    Dim application As IApplication = excelEngine.Excel

    'Create a workbook
    Dim workbook As IWorkbook = application.Workbooks.Create(1)

    'Get the first sheet
    Dim worksheet As IWorksheet = workbook.Worksheets(0)

    'Create a named range
    Dim name As IName = workbook.Names.Add("Test_Range")
    name.RefersToRange = worksheet.Range("A1:B4")
    worksheet.Range("Test_Range").Text = "Test"

    'Save as Excel file
    workbook.SaveAs("XlsIOOutput_NamedRange.xlsx")
  End Using
End Sub