To remove password protection from Excel, you need to open the spreadsheet and go to the File > Info section. Then, click on the Protect Workbook option and select the Encrypt with password option ...

Whether you’ve forgotten the password or received a protected file from someone else, unlocking an Excel spreadsheet without the password may seem like an insurmountable challenge.

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.