Is there a way for me to create a .csf coordinate system file from ArcMap directly, or from .prj coordinate system file ?
I don't know of a way in the main/core software. If you have access to the Data Interoperability Extension or FME, they might be able to do it by converting the data into a GeoMedia format.
If you have any examples of the contents of a .csf file, maybe it's possible for me to show how they could be converted.
Melita