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 ...

To add password protection to sheet 2, right-click on it, select “ Protect sheet,” create a password and click OK. This is how you can create an automated quiz in MS Excel by using formulae.