Whether you use the Excel apps on Windows and Mac or Excel web on a Chromebook, check the top ways to password-protect an Excel spreadsheet.

How to Lock or Unlock Specific Cells in an Excel Worksheet/Workbook This feature allows you to lock specific cells in a worksheet. When a cell is locked, it cannot be edited.

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.

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 ...

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.