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 ...

Safeguard your Excel worksheets from accidentally deleting formulas or data sets by locking important cells, while leaving the rest of the worksheet editable.

Microsoft Excel normally does not let users change the values of protected cells. To edit a protected cell, you must first remove its protected status. You can do this using either Excel's ribbon ...

Learn how to use Excel’s Allow Edit Ranges feature to assign editable cells, protect data, and streamline collaboration in shared workbooks.

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

How to Tell If a Worksheet Is Protected in Microsoft Excel 2003. Protecting a worksheet in Excel 2003 prevents others users from editing it. For example, if you have tracked and charted your ...