CMX is legacy and read-only here
CMX is an older vector format. It can usually be opened and converted from, but it's long obsolete, so there's no modern encoder to create new CMX files.
Looking for SVG to CMX? Here's why CMX isn't an output option — and the modern formats to use.
We don't create CMX files — it's a legacy format that's effectively read-only. Here's what to convert to instead.
CMX is an older vector format. It can usually be opened and converted from, but it's long obsolete, so there's no modern encoder to create new CMX files.
For a file that opens everywhere, convert your SVG to PDF, EPS or DXF instead.
SVG is an XML-based vector format that stays perfectly sharp at any size — ideal for logos, icons and illustrations on the web.
How to open SVG opens in all modern browsers and vector editors like Illustrator, Inkscape and Figma.
Full SVG format guide