The ribbon can be minimized in order to save screen space.
* Right-click the ribbon, and then click Minimize the Ribbon.
* To quickly minimize the ribbon, double-click the name of the active tab. Double-click a tab again to restore the ribbon.
* To minimize or restore the ribbon via Keyboard shortcut press Ctrl+F1.
To use the ribbon while it is minimized, click the tab you want to use, and then click the option or command you want to use.