To remove protection from the spreadsheet, open it in Excel, click the "Review" tab and then click "Unprotect Sheet" in the Changes group. Type the password into the Password field and click "OK." ...

At any stage, should you feel to unprotect the sheet and show the formulas again, select Unprotect sheet option and enter the saved password in Unprotect Sheet password box.

Protecting a worksheet in Excel 2003 prevents others users from editing it. For example, if you have tracked and charted your business's sales on a sheet, you will want co-workers to access the ...