Fortunately, Excel provides built-in features that allow you to hide and password-protect your worksheets without requiring any programming skills. Password Protecting Excel Spreadsheet Data ...

Microsoft Excel is a spreadsheet program used for analytical purposes. The program's files are known as workbooks. A workbook should contain at least one visible worksheet--a collection of cells ...

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 do this, press Ctrl + A to select the entire worksheet. Then, go to the Home tab, and in the Cells group, click Format > Hide & Unhide > Unhide Rows or Unhide Columns.