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.

Add password protection by locking the VBA project for viewing. Save the workbook as a macro-enabled file with the `.xlsm` extension. Close and reopen the workbook, enabling content to activate ...

Key Takeaways : Excel spreadsheets can be protected by Edit Ranges, Sheet Protection, Workbook Protection, File Modify Password, VBA Project Password, and File Open Password.