Workbook.ProtectStructure Property (Excel)
True if the order of the sheets in the workbook is protected. Read-only Boolean.
Syntax
식 .ProtectStructure
식 A variable that represents a Workbook object.
Example
This example displays a message if the order of the sheets in the active workbook is protected.
If ActiveWorkbook.ProtectStructure = True Then
MsgBox "Remember, you cannot delete, add, or change " & _
Chr(13) & _
"the location of any sheets in this workbook."
End If