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.

Want to protect an important Word document or Excel spreadsheet? Here's how to add a password, make documents read-only, and tap into other tricks to safeguard sensitive files.

There are several options available to you to protect your Excel file with a password. Remember that once you protect the Excel file, you cannot open it without entering the password.

Add Formulas to Generate a Random Strong Password After creating the basic structure of the sheet for random password generator, comes the main task.

At the file level, you can password protect an Excel workbook in two ways: You can determine who can get in and who can save changes.

Add passwords if you want Excel to prompt for a password before allowing a user to open or modify the workbook file.