Microsoft Excel 2013 and Excel 2010 displays the formula details in Formula bar. In case if your excel does not show the Formula bar then you can unhide the formula bar using the View menu.
To unhide the formula bar in Excel 2010 and Excel 2013
- Navigate to the View menu and then to the Show section.
- Under Show section, tick the check box with label as Formula Bar.
Now Excel would start displaying the Formula bar below the Office menus.