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.

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

Four ways to protect your Excel formulas (free PDF) If a user inadvertently changes the formulas in your Excel workbooks, all your hard work could go out the window.

Formulas are powerful tools for performing calculations and analyzing data in Excel. In this beginner’s guide, you’ll learn how to use formulas and explore some popular built-in functions.

Save this for the spreadsheet jocks in your office—we'd bet even the experts don't know all of these formula tips.