Excel 2019 for Mac is a powerful spreadsheet software，Mastering these keyboard shortcuts can significantly improve your work efficiency： 1. F2 / Control + U: Enter the cell editing state (touch bar Mac needs to adjust the fn function commonly used) 2. Command + C: Copy selected content 3. Command + V: Paste copied content 4. Command + X: Cut selected content 5. Command + Z: Undo the previous action 6. Command + A: Select all content in the current worksheet 7. Shift + ...