MS Excel: The Quick Access Toolbar

 

This is a customizable toolbar; it contains a set of commands, which are not dependent of the Tab on the Ribbon that is currently displayed. As its name itself suggest that, Quick Access Toolbar; the toolbar which can be accessed quickly. It can save your time a lot.

You can also configure Quick Access Toolbar as per your requirement. You can put the frequent used Tools in the Bar to save the time.

Few examples are given below.

Undo, Redo, New File, Open File, Save File Quick Print etc.

If you want to reverse any action you can do it by UNDO, and if you want to get that action back (you realised you did UNDO by mistake) then REDO will help you to get your last action again.