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Removes protection from the workbook. This method has no effect if the workbook is not protected.
Assemblies: Microsoft.Office.Tools.Excel (in Microsoft.Office.Tools.Excel.dll)
Microsoft.Office.Tools.Excel.v4.0.Utilities (in Microsoft.Office.Tools.Excel.v4.0.Utilities.dll)
- Type: System.Object
The case-sensitive password to use to unprotect the workbook. If the workbook is not protected with a password, this parameter is ignored. If you omit this parameter for a workbook that is protected with a password, the method fails.
If you forget the password, you cannot unprotect the workbook. It is a good idea to keep a list of your passwords and their corresponding document names in a safe place.
For information on optional parameters, see Optional Parameters in Office Solutions.
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.