The Ribbon Menu is displayed at the top of the DEX main window as shown below.

The DEX Ribbon aim to enhance usability; by consolidating the DEX's functions and commands in an easily recognizable place, you need not look through multiple levels of hierarchical menus, toolbars or task panes before finding the right command.

The Ribbon consists of a pane that contains controls (such as buttons and icons) organized into a set of tabs, each one containing a grouping of relevant commands.

Some tabs, called contextual tabs, appear only after the you selects an object or a sheet. Contextual tabs expose functionality specific only to the object/sheet with focus.