XLSX Converter
Convert XLSX files online for free — XLSX is the modern Microsoft Excel spreadsheet format.
or drop files here
Max file size 1 GB. Browser-side conversions have no upload limit.
How it works
Add your files
Drop XLSX files above or click Choose Files.
Convert
Tweak the settings via the gear icon, then click Convert.
Download
Grab the result — done.
Frequently asked questions
Drop your files into the box above (or click Choose Files), adjust the options via the gear icon if you like, then click Convert and download the result.
Yes — completely free, with no watermarks and no sign-up.
Conversions that can run in your browser never upload your file at all (look for the "In your browser" badge). Everything else is sent over an encrypted connection and automatically deleted within an hour.
This tool accepts XLSX files.