On a PC 1. With your Excel spreadsheet open, click on the "File" tab, then click on "Info." 2. Click on the box labeled "Protect Workbook" to open a drop-down menu.

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.

Remember that once you protect the Excel file, you cannot open it without entering the password. Make sure you remember the password and store it in a safe place as a backup. Method 1: Using Excel ...