Undo, Redo, Or Repeat An Action - Microsoft Support

Undo an action

To undo an action press Ctrl+Z on your keyboard, or select Undo on the Quick Access Toolbar. You can press Undo (or Ctrl+Z) repeatedly if you want to undo multiple steps.

The Undo command on the Quick Access Toolbar

Note: For more information about the Quick Access Toolbar, see Customize the Quick Access Toolbar.

You can't undo some actions, such as selecting commands on the File tab or saving a file. If you can't undo an action, the Undo command changes to Can't Undo.

To undo several actions at the same time, select the arrow next to Undo Undo button, select the actions in the list that you want to undo, and then select the list.

Tip: If you're not able to undo the changes you wish to revert, you may be able to restore a previous version of the file. See Restore a previous version of a file in OneDrive or OneDrive for Business

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