You can password-protect your Microsoft Excel spreadsheets to prevent unauthorized people from opening or editing them. If you only block edits, anyone can open your ...

Want to protect an important Word document or Excel spreadsheet? Here's how to add a password, make documents read-only, and tap into other tricks to safeguard sensitive files.

Usually, if you share an Excel spreadsheet with someone, that person is able to freely edit the spreadsheet. In some cases, you may want to send someone a spreadsheet with data but you also want to ...