If you have sensitive data you'd like to keep from prying eyes in a Microsoft Excel file, the easiest way to protect it is with Excel's built-in password tools.

If you would like to make sure that your Excel spreadsheet data is secure this guide will show you how to password protect and hide worksheets ...

In Word, Excel, or PowerPoint for Windows, open the file you want to protect with a password, then select File and Info.

A recommended approach to secure your most private documents — whether it’s a PDF, Word file, or Excel spreadsheet — is to lock them with a passcode. While this does help keep sensitive ...

Learn how to unprotect Excel sheets or workbooks without a password using this simple step-by-step guide. No software required!