Excel Tips: Security > Protect Workbooks Protect Workbooks How to add a digital signature in Excel? How to mark as final in Excel? How to prevent changes to the whole workbook? How to prevent or disable edit mode by double clicking cell in Excel? How to prevent others from inserting worksheet in Excel? How to protect all workbooks in a folder at once in Excel? How to protect workbook structure in Excel? How to protect/lock an Excel template being overwritten with password? Share Workbooks How to cancel a shared workbook? How to create/make a shared workbook in Excel? How to prevent deleting rows or columns in a shared unprotected workbook? How to share only one specific sheet to others in Google sheet?