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