Very interesting on the Design Spark Mechanical. When I have time, I need to look into that. I wonder what "native" file extension it saves in f.e. .dxf....? If dxf, then that file can be shared across the board with no problems.
It can do dxf, dwg etc. Etc.
It is created by the designers of spaceclaim. I already found a very basic tutorial showing you the basics of the program which I will post when I am back behind my pc tomorrow.