# CTRL + Z and CTRL + Y

[![ctrl-z-ctrl-y.png](https://help.mlc-wels.edu/uploads/images/gallery/2023-10/scaled-1680-/ctrl-z-ctrl-y.png)](https://help.mlc-wels.edu/uploads/images/gallery/2023-10/ctrl-z-ctrl-y.png)

Use to go back to earlier versions of a document, and then to revert to the newer one when you decide that was better after all.