Format hub
XLS tools for uploads, compatibility fixes, and everyday file work.
XLS Converter online for free. Convert from XLS or convert files to XLS with 1 useful routes for uploads, compatibility, and everyday file work.
Convert from XLS
Convert to XLS
XLS compatibility checklist
Use it when
legacy spreadsheets and older Excel workbooks.
Check after conversion
Open the output and confirm layout, image quality, audio/video playback, or text readability before replacing the original.
Keep in mind
XLS is the older Excel format and is often converted to XLSX, CSV, or PDF.
Related formats
Frequently asked questions
XLS Converter: what can I convert?
XLS Converter online for free. Convert from XLS or convert files to XLS with 1 useful routes for uploads, compatibility, and everyday file work.
Should I keep the original XLS file?
Yes. Keep the original file until the converted output opens correctly in the app, website, or device where you plan to use it.
Is this XLS converter free?
Yes. You can start from this page, choose a supported route, and convert files online without creating an account.