XLS converter
Pick what to do with a XLS file. Everything runs in your browser, nothing is uploaded.
Convert XLS files free and in your browser. Pick a target format or a tool below, drop your file in, and download the result. Nothing is uploaded, so your files stay on your device.
Common XLS conversions include CSV, TSV, XLSX, JSON, among others.
About XLS
XLS is the older Excel format from before 2007. Converting it to XLSX or CSV makes it easier to use in current tools.
Questions
Is the XLS converter free?
Yes, it is free with no sign-up and no watermark. There is no cap on how many files you can convert, and nothing to install.
Do my files get uploaded to a server?
No. The conversion runs entirely in your browser using code that loads onto your device, so the file is read, converted, and downloaded locally. It never reaches us or anyone else.
Which format should I convert my XLS to?
It depends on what you need. For wide compatibility choose a mainstream format; for the smallest file choose a modern, efficient one. Each conversion page explains the trade-off.