1. Ctrl + A: Select all cells in a worksheet.
2. Ctrl + B: Bold highlighted text.
3. Ctrl + C: Copy text or cell contents.
4. Ctrl + F: Find text or cells in a worksheet.
5. Ctrl + G: Go to a specific cell in a worksheet.
6. Ctrl + H: Find and replace text or cells in a worksheet.
7. Ctrl + I: Italicize highlighted text.
8. Ctrl + K: Insert a hyperlink.
9. Ctrl + N: Open a new workbook.
10. Ctrl + O: Open an existing workbook.
11. Ctrl + P: Print a workbook.
12. Ctrl + S: Save a workbook.
13. Ctrl + U: Underline highlighted text.
14. Ctrl + V: Paste text or cell contents.
15. Ctrl + W: Close a workbook.
16. Ctrl + X: Cut text or cell contents.
17. Ctrl + Y: Repeat the last action.
18. Ctrl + Z: Undo the last action.
19. F1: Open the Excel Help window.
20. F2: Edit a cell.
21. F5: Go to a specific cell in a worksheet.
22. F7: Check spelling in a worksheet.
23. F11: Create a chart from selected data in a worksheet.
24. F12: Save a workbook as a different file type.
25. Alt + F1: Insert a chart in a worksheet.

Note: These shortcuts are for Microsoft Excel 2019 for Windows. Some shortcuts might not work in earlier versions of Excel.