Sending Excel files containing crucial financial and business data has risks. To add a layer of protection, you should learn to password protect an Excel file.

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 ...

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.

How to lock cells in Microsoft Excel, so you need a password to change or erase data Written by Ryan Ariano ...