.cst files

[lar3ry]

I don't know if this is a good place for the question.
I have a Roland GX-24.
I am running Ubuntu MATE.
I previously had a Windows machine and used Roland Cut Studio to control the GX-24 over USB.
The files it sent were .cst files generated by an Inkscape extension or plugin.
Unfortunately, that machine is no longer working.
Does any version of InkCut generate .cst files?
Alternatively, are there any other file types a GX-24 will use?
I can run Inkscape on another machine if necessary.