There are several options available to you to protect your Excel file with a password. Remember that once you protect the Excel file, you cannot open it without entering the password.

One of the most effective ways to protect your Excel data from unauthorized access is by encrypting your entire workbook with ...

At the file level, you can password protect an Excel workbook in two ways: You can determine who can get in and who can save changes.

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 content safe, ...

You can protect the contents of a ZIP file, but unless you know the trick, you might as well not bother.

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

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 ...

It is possible to create a macro in an Excel sheet that unlock the sheet which is already protected by a password. Users can easily prepare a document in the sheet and then lock it again with a ...

Reader James McCormick desires a way to password protect multiple files at one go. He writes: Is there a way to password protect a folder that holds Word or Excel files? I know I can password ...

Sending important documents? Learn how to password protect PDFs for extra security using easy steps with Adobe Acrobat and free online tools.