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 ...

You can unprotect some cells in Excel 2007 to let you expand groups on protected worksheets.

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.