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

So, to fix the random numbers you generated (I used the RAND function in my example below), select the cells containing those ...

You may want to multiply cells or numbers in Microsoft Excel to analyze data. Here's what you need to know to do it.

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.

You can sum a series of numbers in Microsoft Excel manually by typing in a simple formula, or automatically with a tool.

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.