The software Classic Menu for Office is designed for the people who are accustomed to the old interface of Microsoft Office 2003, XP (2002) and 2000.
Click the rightmost arrow in the quick access toolbar, and choose the Undo item, then you will successfully add it into the quick access toolbar.
If there is no such a mark, it means you need to add it into your quick access toolbar. Please find the Undo mark in the quick access toolbar. It is very fast for you to undo the actions. If you are not using Classic Menu, it means that you are getting used to the Ribbon. If you have not Classic Menu for Word installed, you can … If you want to return back to more than one action, please click the arrow next to Undo, and then choose the action you want to return. Then, find out the Undo button in the toolbars. With Classic Menu for Word 2007/2010/2013/2016/2019 installed, you can click Menus tab to get back the classic style interface.
