Undo and redo in Microsoft Office

Most programmes offer an undo and redo operation. In Microsoft Office including Word and Excel, the undo will revert your last action. For example, if you have deleted a word accidentally then undo will bring it back. This also works for the previous action and action before that. You can press Ctrl+Z or use the menu in the top left corner for undoing.
There is a special command in Word for repeating and undoing your undone actions which you can access through the buttons in the top left corner or Ctrl+Y. It appears as if that was a two-in-one button. But it basically stores your last action, e.g. typing the word "example", and performs it again.

• example

By using the repeat/redo command, this action will be performed again. Thus, you will see another "example" appearing on screen.

• exampleexample

If you undo this action, the most recent "example" will disappear.

• example

If you repeat/redo your action an additional "example" will appear on screen.

• exampleexample

Location and shape of the buttons

In Word, you have an arrow going backwards for undo (left symbol; Ctrl+Z) and a circle shaped button for redo (right symbol; Ctrl+Y).

The buttons are located on the top left in the newer version of Microsoft Word. The example is from Word 2013.

In the older versions they are integrated in the general menu of symbols, typically in the first row. The example is from Word 2010.

Other issues

In contrast to LibreOffice, you cannot adjust the number of actions in the loop. But you can use the little arrow next to the undo-button and select how many steps you wish to go backwards. You can also press Ctrl+Z until you are where you want to be. Importantly, you can redo your undo if you went to a little far.