All three open and save standard Excel files without issues. | Method | Cost | Offline? | Best for | |--------|------|----------|----------| | Excel 2021/2024 (one-time) | ~$160 | Yes | Permanent single PC | | Microsoft 365 subscription | ~$7/month | Yes | Latest features + cloud | | Excel Web App | Free | No | Light editing anywhere | | Excel Mobile | Free* | Yes (app) | Phones/small tablets | | LibreOffice Calc | Free | Yes | Full desktop alternative |
*Free for screens ≤ 10.1 inches. If you just need to view or make simple changes to an Excel file, use Excel Web App or Google Sheets – both are free and work instantly without installing anything. For professional or heavy work, a Microsoft 365 subscription is worth the small monthly cost. ms office excel download