On the right side, select the Open checkboxes for the file types that you want to open in the Protected View. Now, select the Open selected file types in Protected View radio button at the bottom.

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

This guide will show you how to safely unlock your password-protected documents — including PDFs, Word, and Excel files — using Wondershare Dr.Fone.

Launch Excel and open the protected worksheet. Select the "Review" tab, and then click "Unprotect Sheet." Enter the password, if prompted.

The sheet is password protected. I can open the .xlsx file, I can't do anything to the worksheet other than enter data. Heck, I can't even change the font.

Remember that, with password protections removed, anyone with access to your Excel file can open, view, and edit it. If you've decided a password isn't necessary anymore, this likely isn't an issue.