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.

You can hide formulas in Excel while working. All the formulas and the calculation work can be hidden from the viewers. Learn how to do it.

Learn how to unprotect Excel sheets or workbooks without a password using this simple step-by-step guide. No software required!

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