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.

Here is a tutorial to lock or hide only the formula cells in an Excel workbook. You can also lock formulas in all worksheets in a workbook.

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.

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.

To make your cell non-editable in Excel, you have to lock the cell and use a password to protect the information. Learn how!

Here’s how to lock cells in Excel, whether you’re on Windows 10 or macOS, and it's easy as pie. Learn how to lock cells in Excel and keep vital information on your spreadsheets secure.

To lock your cells in Microsoft Excel, you just need to head into the program's "Protection" tab. Locking a cell in Excel will make it so viewers can't change the data inside of that cell, which ...