ccx to png conversion is most likely related to searches about how to export of Corel clipart files (.ccx) as standard PNG pictures, something that is very well only doable with Corel software. Of course this will turn a scalable vector drawing into raster picture in fixed size.
Inkscape supposedly supports import of CCX files, so this one might be worth a shot if you do not have access to Corel software.
Updated: October 9, 2023