Undo and Repeat the Changes   Microsoft word provides two
important features called Undo, which is used to undo the
previous action and second one is Repeat or Redo, which is used
to repeat the previous action.  For example, If you mistakenly
delete text, you can use the Undo feature to recover it, similar
way if delete a character and you want to delete more characters
then you can use Repeat operation.  How to use Undo & Repeat
operations:  You can access the Undo and Repeat buttons from the
Quick Access toolbar. You should make a note that Repeat button
also called Redo button and both operations have same meaning.
Undo and Repeat Buttons  Here is the simple procedure to apply
undo or repeat (redo) operations:  Step (1): Let us type some
text in a blank document as I have typed above. Now click Repeat
(Redo) button and you will see that word would repeat the same
operation for you.  Repeat Operation  Step (2): Now to examine
undo operation, let us delete last word operation character by
character so that