AllowEditRange.Unprotect Method (Excel)
Removes protection from a sheet or workbook. This method has no effect if the sheet or workbook isn't protected.
expression A variable that represents an AllowEditRange object.
|Password||Optional||Variant||A string that denotes the case-sensitive password to use to unprotect the range of cells. If the range isn't protected with a password, this argument is ignored.|
If you forget the password, you cannot unprotect the sheet or workbook. It's a good idea to keep a list of your passwords and their corresponding document names in a safe place.