XLS converter, in your browser.
Convert XLS files to XLSX, CSV, PDF and TSV and more, or turn other files into XLS. Most of these conversions run in your browser and upload nothing. The ones marked “uploads” run on our server and ask first.
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About XLS
XLS is the binary workbook format Excel used until 2007. It is limited to 65,536 rows per sheet and is treated as a legacy format today.
XLS is limited to 65,536 rows and is flagged as a legacy format by modern Excel. XLS opens in copies of Excel older than 2007.
- Stands for
- Excel 97–2003 Workbook
- Type
- Spreadsheet workbook (binary)
- Compression
- None
- Introduced
- 1997, by Microsoft
- Opens in
- Excel and LibreOffice Calc
- Best for
- Compatibility with very old copies of Excel
- File extension
- .xls
- MIME type
- application/vnd.ms-excel
Questions
How do I open an XLS file?
XLS opens in: Excel and LibreOffice Calc. If your device or app cannot open it, convert it to XLSX or CSV above.
What can I convert XLS to?
toany converts XLS to XLSX, CSV, PDF, TSV, ODS, JSON, YAML, XML, HTML and MD.
What can I convert to XLS?
toany creates XLS files from CSV, TSV, XLSX and ODS.
Are my files uploaded?
It depends on the conversion. Most run inside your browser and upload nothing. Some (XLS to PDF) cannot be done reliably in a browser and run on our server instead: those are marked, ask for your consent first, and the file is deleted after conversion.
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