Underlining Text in Cells

Everyone knows that you can underline text by simply selecting what you want underlined and then clicking on the Underline tool on the ribbon or toolbar. This adds a single underline. If you want a double underline, you must display the Home tab of the ribbon and use the down-arrow at the right of the Underline tool.

If you want any fancier underlines, it really helps to display the Font tab of the Format Cells dialog box. You do this by displaying the Home tab of the ribbon and clicking the small icon at the bottom-right of the Font group.