Learn how to use the redo shortcut in various applications and devices, such as Windows (Ctrl + Y), Mac (Command + Shift + Z), and mobile apps via on-screen buttons or gestures. The redo shortcut can help you reverse or reapply recent actions and enhance your work efficiency. Shortcut for Undo and Redo For Windows or Linux PC, simply press the Ctrl and Z keys together to undo and the Ctrl and Y keys to redo, respectively. If you are a Mac user, then press the Cmd + Z to undo and Command + Shift + Z to redo over any document or Excel sheet. Why Use the Redo Undo Keyboard Shortcut ? Using the shortcut keys for redo and undo ensures a smooth flow of work. You are able to fix your mistakes and type quickly without using the backspace button on your documents. Undo and ... The redo shortcut key stands as one of the most helpful keyboard shortcuts because it enables users to undo previous undo operations. Every computer user can benefit from learning this shortcut because it makes their work more efficient and provides better application usage. Learn how to use Ctrl+Z and Ctrl+Y to undo and redo actions in Windows applications. Find out which applications support other keyboard shortcuts for Undo and Redo , such as Alt+Backspace or Ctrl+Shift+Z.