Models are stored as gr2 files (radgames granny proprietary format) in your eve/sharedcache/resfiles folder with a hashed filename.
If you open eve/sharedcache/tq/resfileindex.txt you’ll find mappings from the human readable names to their hash filename (which correlates to a subfolder and file is the resfiles directory).
You’ll need something to convert the files from gr2 to someother format, like evegr2toobj.exe.
If you need help join the evecreatives discord someone can help or give you more details.