The Undo shortcut is Ctrl Z and the Redo shortcut is Ctrl Y for Windows Word, Excel, etc. The Undo/Redo shortcut key on Mac is Command + Z, Command + Shift + Z.
Undo/Redo Shortcut in Excel, Word, etc. on Windows/Mac - MiniTool
How to Undo, Redo, and Repeat Actions in Excel
My new computer has File Explorer and it doesn't have an undo button anymore and using CTRL-Z does nothing. How do I get the undo button and function back? - Quora
Undo Redo Shortcuts Key in Excel Top 5 Ways to Undo Last Action Quickly
Question: Adding Undo and Redo Buttons to the Toolbar in Office 365 Apps - Microsoft Community Hub
Windows Desktop shortcut for Excel, Outlook, Word 2013 / 365, how to
how do I get back the undo and redo symbols? - Microsoft Community
Microsoft Office Keyboard Shortcuts
Microsoft Word - Undo & Redo - Shortcut Keys and Button [Tutorial]