I'll try to throw a little more light on what's been posted on this thread as far as exporting/importing is concerned:
1. The "Student" editions of SW usually lag behind the commercial version by about a year, even though they may be called the same year. The EAA version is no exception.
2. The Student versions of SW are fully functional and they can export and import CAD files to/from most other CAD systems. That includes CAM G-code for CNC machines.
3. It is extremely important to realize that the student versions are strictly for educational purposes. You cannot use your EAA SW for any commercial purposes, and the commercial software is clever enough to know if you imported a file from the student version.
4. That said, there are (among others) two widely used international standard protocols for transferring data to/from other CAD systems - IGES, and STEP. SW can read and write both. IGES is somewhat older than STEP and I would recommend the latter.
5. There are two other commonly used protocols - DXF and Parasolid (file extension .x_t). Both of these are de facto standards because they are very commonly used. Most CNC shops will accept these formats, as well as IGES and STEP. I call them de facto standards because they are (unlike IGES and STEP) proprietary protocols belonging to AutoDesk and Parasolid respectively. DXF is primarily 2D (good for laser or water-jet cutting).
6. Unless you have your own CNC machine, I would not recommend trying to export G-Code to your manufacturer. Much better to send STEP or .x_t files and let them generate their own g-code to suit their particular machines and tooling. If your shop can't use your STEP or .x_t files then it's probably not a good idea to use their services in the first place.
7. STL format: This comes from the rapid prototyping world (read "3D Printing"). STL is extremely primitive, and as such I would not recommend it as a means of transferring geometry between CAD systems. Basically, all it does is break ALL the geometry down into a huge number of triangles - nothing else, only triangles.
8. Hope this helps.
Jeffrey