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.

Here’s how to lock cells in Excel, whether you’re on Windows 10 or macOS, and it's easy as pie. Learn how to lock cells in Excel and keep vital information on your spreadsheets secure.

Sending Excel files containing crucial financial and business data has risks. To add a layer of protection, you should learn to password protect an Excel file.