You may need to hide a formula in Excel so users can't see the formula that creates the value displayed in the cell.
This is useful if you need to let others see only bottom-line information. To hide a cell's formula follow this tutorial from Microsoft, but keep in mind that this procedure has became useless thanks to Google Mail and its integrated feature Google Spreadsheet.
If you use Gmail you already know that every time you receive an XLS attachment you have the option to open it in one-click with Google Spreadsheets. Now prepare an XLS file with some hidden formulas and send it to your Gmail address…
..as you can see Google will show you the "hidden" formulas.
