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.

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.

Open the spreadsheet you want to protect in Excel, click the "Review" tab and then click "Protect Sheet" in the Changes group to display the Protect Sheet dialog.

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 ...

The ability to lock cells or elements of Microsoft Excel and Google Sheets, but not the full sheet, allows maximum customization and control of a project.

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.

You worked hard to put that Excel sheet together, now protect it from unintended damage.