Just like any Microsoft compliant application, the Title Bar in MS Excel displays the Application Name and the current Filename of the Worsheet, this can be found o the left most portion of the bar.
By double-clicking on the Title-Bar, it switches its window Maximize to Restore Mode and vice-versa.
You could also move the active window by click-dragging it on the Title Bar when in Restore Mode.
Performing a Right-Mouse click on the Title Bar would also show the a Short cut menu for Restoring, Minimizing, Maximizing, etc the active Window
