| File Extension | XLS |
|---|---|
| Category | Document File |
| Technical Details | .xls was extended to the Microsoft Office XML format spreadsheetML which was later succeeded by the Office Open XML specification. The format stores data as fixed sized streams and sub streams which contain cell records with actual user input cell data, formulas, cell properties, along with meta data about the file including information such as document author, date of creation, worksheet names etc. The main streams in the xls format are Workbook stream, Globals sub stream, and the worksheet sub stream. |
| Associated Programs | Microsoft Office Excel 97/2000/XP Microsoft Office Excel 2007/2010/2013 Google Sheets |
FreeFileConvert supports converting XLS files into 19 different formats. Select your desired conversion from the table below to get started. All conversions are performed online and require no software installation.
| Convert from XLS | Conversion | Rating |
|---|---|---|
| 0 | XLS CSV Recommended Stable Comma Separated Values File | |
| 1 | XLS DBF Experimental Database File | — |
| 2 | XLS DIF Recommended Stable Data Interchange Format | — |
| 3 | XLS FODS OpenDocument Flat XML Spreadsheet | — |
| 4 | XLS HTML Recommended Hypertext Markup Language File | |
| 5 | XLS ODS Recommended Outlook Express 5 Mailbox | |
| 6 | XLS OTS OpenDocument Spreadsheet Template | — |
| 7 | XLS PDF Recommended Stable Portable Document Format File | |
| 8 | XLS PXL Experimental Pocket Excel File | — |
| 9 | XLS SDC Experimental Apache OpenOffice Calc Spreadsheet | — |
| 10 | XLS SLK Recommended Symbolic Link File | — |
| 11 | XLS STC Experimental OpenOffice.org 1.0 Spreadsheet Template | — |
| 12 | XLS SXC Experimental StarOffice Calc Spreadsheet | — |
| 13 | XLS UOS Uniform Office Spreadsheet | — |
| 14 | XLS VOR Experimental StarOffice Template | — |
| 15 | XLS XHTML Recommended Extensible Hypertext Markup Language File | |
| 16 | XLS XLSX Popular Recommended Stable Microsoft Excel Open XML Document | |
| 17 | XLS XLT Recommended Excel Template | |
| 18 | XLS XML Unstable XML File Extension |