The user interface in Microsoft Office applications introduced with Office 2007. Except for the File menu, the Ribbon replaced all the traditional menus with tabbed toolbars and buttons.
Menus Became Toolbars
Except for the File menu (red arrow), the Ribbon puts functions together in toolbars accessed by tabs. The Home tab is selected in this example with some of the detail of the toolbar at the top. For comparison, the previous Office interface is shown at the bottom.