How to Unprotect a Spreadsheet in Office 2007. Microsoft Office 2007 has several programs that facilitate the day-to-day operations of small businesses, including PowerPoint, Word and Excel ...

The plug-in adds Unprotect workbook and Unprotect sheet options to Excel's Tools menu, and using it is as simple as selecting an option when you're locked out.

The ability to lock cells or elements of Microsoft Excel and Google Sheets, but not the full sheet, allows maximum customization and control of a project.

Safeguard your Excel worksheets from accidentally deleting formulas or data sets by locking important cells, while leaving the rest of the worksheet editable.