How to unlock specific cell in excel

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1

Hi, I’m using uipath for excel automation, and I want to unlock some cells (before protect sheet) in specific column (i.e. from column AG to AI and AY to AZ) so that after protecting sheet I can still edit them. I didn’t find this activity in official package and Balareva package, so I try to invoke code to do it. Here is my code but it can’t achieve. When I try the range as “AG:AK” it sometimes achieve while other times occurs “Invoke code: Exception has been thrown by the target of an invocation.”
Could you help me improve the code or recommend other method to do it?

Dim excel As Microsoft.Office.Interop.Excel.Application
Dim wb1 As Microsoft.Office.Interop.Excel.Workbook
Dim ws1 As Microsoft.Office.Interop.Excel.Worksheet
excel = New Microsoft.Office.Interop.Excel.ApplicationClass
wb1 = excel.Workbooks.Open(“C:\path\test.xlsx”)
ws1 = CType(wb1.Sheets(“Master”), Microsoft.Office.Interop.Excel.Worksheet)
ws1.Range(“AG:AK,AY:AZ”).Locked = False
excel.DisplayAlerts = False
wb1.SaveAs(“C:\path\test.xlsx”)
wb1.Close
excel.Quit
ws1 = Nothing
wb1 = Nothing
excel = Nothing
GC.Collect

2

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