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 ...

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.

This is the demonstration file to accompany the article, Hide everything but the working area in an Excel worksheet by Susan Harkins.

Microsoft Excel is immensely popular for both professional and personal spreadsheet needs. Here are the steps for unprotecting your worksheet.