Okay STL, It looks like the importer takes the original .G3X file and converts it to 3 new files with extensions .KEX, .plnG3, and .bse. But, nothing can be viewed there. Also, in the program under airplane editing, it shows only the 3D view. Do you know where to look for this? I'm assuming you've checked it on G3.

Edit: Are you refering to the image in your post? That looks like some folders on Rick's computer with models he was working on.. it's not a folder common to (within) G3.