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 EPS 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 EPS to SVG, PDF or DXF instead.
EPS is a long-standing vector format for print and design, supported across professional design software.
How to open EPS opens in Illustrator, CorelDRAW, Photoshop and most design tools.
Full EPS format guide