Activate Excel cell in C#, VB.NET

using Syncfusion.XlsIO;

Imports Syncfusion.XlsIO

using (ExcelEngine excelEngine = new ExcelEngine())
{
    //Instantiate the Excel application object
    IApplication application = excelEngine.Excel;
 
    //Create a new Excel workbook
    IWorkbook workbook = application.Workbooks.Create(1);
 
    //Get the first worksheet in the workbook into IWorksheet
    IWorksheet worksheet = workbook.Worksheets[0];
 
    //Activate a cell and assign text in it
    worksheet.Range["E5"].Activate();
    worksheet.Range["E5"].Text = "Active cell in this worksheet is E5";
 
    //Autofit the column
    worksheet.Range["E5"].AutofitColumns();
 
    //Save the Excel document
    workbook.SaveAs("Output.xlsx");
}

Using excelEngine As ExcelEngine = New ExcelEngine()
    'Instantiate the Excel application object
    Dim application As IApplication = excelEngine.Excel
 
    'Create a new Excel workbook
    Dim workbook As IWorkbook = application.Workbooks.Create(1)
 
    'Get the first worksheet in workbook into IWorksheet
    Dim worksheet As IWorksheet = workbook.Worksheets(0)
 
    'Activate a cell and assign text in it
    worksheet.Range("E5").Activate()
    worksheet.Range("E5").Text = "Active cell in this worksheet is E5"
 
    'Autofit the column
    worksheet.Range("E5").AutofitColumns()
 
    'Save the Excel document
    workbook.SaveAs("Output.xlsx")
End Using

//Activate cells and assign text
worksheet.Range["E5:E10"].Activate();
worksheet.Range["E5:E10"].Text = "Active cells in this worksheet are from E5 to E10";

'Activate cells and assign text
worksheet.Range("E5:E10").Activate()
worksheet.Range("E5:E10").Text = "Active cells in this worksheet are from E5 to E10"