How to lock cells in Excel Open the Excel workbook and select all cells in the worksheet with the cells you want to lock by pressing the Ctrl + A buttons on your keyboard.

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.

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 ...

What if you want to lock some cells on your worksheet but not the entire worksheet? In Microsoft Excel, you can lock a specific cell or cells from people trying to edit essential information in them.

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.