1. Microsoft Office Excel2007 2. . 3. Windows 4. Excel 2003 c Excel / , / / , / /, , / 5. Excel 2003 Menu Excel 2007 Tab . 6. 3 Excel 2007 Excel 2003 Excel 2007 7. Home , , 7 8. Insert , 2 3 9. Page layout , , . , , 10. Formulas . , 11. Data , , , 12. Review Proofing Comments Changes 13. View .Add-Ins Excel 2007 icon . 14. (button) . 15. Office Button . New . Excel 200 16. Prepare . Office 2007 button 17. re -Encrypt Document Excel .Prepare Mark as Fin Excel 18. Insert Delete Rename Move or Copy - Protect Sheet Tab color Hide 19. -> Save As . Save as Tools/General Options .Always create backup Password to open Password to modify Read-only recommended 20. .