Answer:
Ribbon
Step-by-step explanation:
The ribbon is one of the gui (graphical user interface) components of the Microsoft's office applications such as Word, Excel, Outlook and PowerPoint. It is just at the top of the screen and under the title bar of the application. It contains so many tabs such as File, Home, Insert, Page Layout, Design, References, Mailings, Review, View and Help.
These tabs are just used to group related commands. For example, the File tab groups commands such as New, Open, Save, SaveAs and Close.