Hi @Kirigirisu_Coin
Or you can use invoke Code
Hide Column.zip (10.4 KB)
excelApp = New Microsoft.Office.Interop.Excel.ApplicationClass
excelWB = excelApp.Workbooks.Open(excelFilePath)
excelWS = CType(excelWB.Worksheets(excelSheet), Microsoft.Office.Interop.Excel.Worksheet)
excelWS.Range(rangeToHide).EntireColumn.Hidden = True
excelWB.Save
excelWB.Close
excelApp.Quit