.xls Excel 97–2003 workbook
XLS Converter
XLS is the older binary Excel format. Some accounting and government software still exports it.
- No upload — 100% private
- Fast, lossless when possible
- Free & unlimited
- Works on iPhone & Android
Working…
Keep this tab open — the conversion runs on your device, nothing is uploaded.
Advertisement
Advertisement
Advertisement
XLS at a glance
| Full name | Excel 97–2003 workbook |
|---|---|
| Extension | .xls |
| Opens on iPhone | ◐ Partly / with an app |
| Opens on Android | ◐ Partly / with an app |
| Opens on Windows | ✓ Yes |
| Opens on Mac | ◐ Partly / with an app |
XLS is best for older Excel and accounting software.
Advertisement
Convert XLS to…
Convert to XLS from…
Frequently asked questions
What is a .xls file?
XLS is the older binary Excel format. Some accounting and government software still exports it.
Is converting XLS files here private?
Yes. Files are processed in your browser and never uploaded.