I taught my Mom how to use the computer and specifically Excel this last weekend. She is paranoid by the thought of identity theft. (I think it's a real threat but she doen't have internet service so I'm not sure how real the threat is to her computer.) She had me add a password for herself and her husband to "protect" her files. But on the desktop it allows you to create a new user and get to any of the files on the C drive - not much protection. Excel will let you protect the file with a password to stop and changes but not to view. Is there a way to password protect an Excel file from being opened at all? Thanks for your help.