When you install S3D it changes STL, GCODE and FACTORY files so that both show as '3D Model Files' in the Explorer file menu 'Type' field. They also have the same exact icon so there is no way to tell them apart unless you turn off 'hide known file types'.
I would suggest not naming THREE dispirit files types the same 'Type' designator and/or giving them different icons. It just adds unnecessary confusion.
