XLSX (EXCEL) to SIX Converter
Convert your xlsx files to six online & free
Office Open XML Worksheet Sheet
DEC SIXEL Graphics Format
How to convert XLSX to SIX
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose "to six"
Choose six or any other format you need as a result (more than 200 formats supported)
Download your six
Let the file convert and you can download your six file right afterwards