✅ Ctrl C (Copy) / Ctrl V (Paste): Copying and pasting data is one of the most fundamental tasks in Excel, allowing you to duplicate information quickly and efficiently. ✅ Ctrl S (Save): Regularly saving your work helps prevent loss of data in case of unexpected issues. It's a simple shortcut that can save you from a lot of frustration. ✅ Ctrl Z (Undo) / Ctrl Y (Redo): These shortcuts allow you to easily undo or redo your actions, providing flexibility and helping you correct mistakes quickly. ✅