| 1. | .xl | application/excel |
| 2. | .xla | application/excel ◊ application/vnd.ms-excel ◊ application/x-excel ◊ application/x-msexcel |
| 3. | .xlb | application/vnd.ms-excel ◊ application/excel ◊ application/x-excel |
| 4. | .xlc | application/vnd.ms-excel ◊ application/excel ◊ application/x-excel |
| 5. | .xld | application/excel ◊ application/x-excel |
| 6. | .xlk | application/excel ◊ application/x-excel |
| 7. | .xll | application/vnd.ms-excel ◊ application/excel ◊ application/x-excel |
| 8. | .xlm | application/vnd.ms-excel ◊ application/excel ◊ application/x-excel |
| 9. | .xls | application/vnd.ms-excel ◊ application/excel ◊ application/x-excel ◊ application/x-msexcel |
| 10. | .xlt | application/excel ◊ application/vnd.ms-excel ◊ application/x-excel |