WORKING WITH DOCUMENTS
Undoing mistakes
You can undo your last editing action if you made a mistake. You can reverse most of your last actions, such as entering text or changing text format. You cannot, for example, undo an action such as deleting rows from tables. Notes usually warns you if an action cannot be undone.

Choose Edit - Undo <action>, or press CTRL+Z (Macintosh users, COMMAND+Z).

See Also