Hunterland, I don't know why they won't open in Aspire. The files are a standard stl.
You might want to post this question in the Aspire forum.
I taught myself how to create these this way, for V-Carve, because I had heard that Aspire was very proprietary.
Try downloading one of the free solid model viewers available online and see if they open. I recommend Meshlab.
I have worked with these in G-Max, Blender, MeshLab, Meshmixer, Fusion 360, Esprit, SculptGL, and Windows 3D Paint.
Please keep me posted on this situation...if the glitch is on my end I'll seach for, and develope a fix.
If you're a member of CNC Zone you could bring it up there. There is a Vectric forum in there. Those guys are light years ahead of my abilities.