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.

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.

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.

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 ...

In this post, we will see how to password protect PDF, Excel, Word, Office documents, OneNote notes, Files, Folder, Zip file, Games, Images, applications, installed programs, USB, Flash, Pen ...

If you want to set an expiration date and password when sharing Excel files online, here is how you can do that. It is possible to do both of them when using Excel Online.