If you’re new to CAD, welcome! If you’re a veteran who would like a little guidance and some brief history on a few major file formats, you too are in the right place. Organizations that use parametric 3D modeling systems, such as Solidworks, PTC Creo, or Autodesk Inventor usually save their work in a proprietary software format, such as .SLDPRT or .PRT. Some major CAD programs can share files between them but, due to the proprietary nature of the different companies, often translators between them are unidirectional. This is the case even between different versions of Solidworks. Opening an old… Read more »