To view the Ribbon in Touch Mode in Excel 2013:

If you're working on a touch-screen device, you can enable Touch Mode to create more open space on the Ribbon, making commands easier to tap with your fingers.

1. Click the drop-down arrow to the right of the Quick Access toolbar, then select Touch/Mouse Mode from the drop-down menu.

   
   

   Adding Touch/Mouse Mode to the Quick Access toolbar
2. The Touch/Mouse Mode command will appear on the Quick Access toolbar.
3. Click the Touch/Mouse Mode command, then select Touch from the drop-down menu.

   
   

   Selecting Touch Mode
4. The Ribbon will switch to Touch Mode.

   
   

   The Ribbon in Touch Mode

To turn off Touch Mode, click the Touch/Mouse Mode command, then select Mouse from the drop-down menu.