gear assemblies to accurately reproduce the rotational movement of an actual gear train. Finally, drawings can be created either from parts or assemblies. Views are automatically generated from the solid model, and notes, dimensions and tolerances can then be easily added to the drawing as needed. The drawing module includes most paper sizes and standards (ANSI, ISO, DIN, GOST, JIS, BSI and SAC). File format SolidWorks files (previous to version 2015) use the Microsoft Structured Storage file format. This means that there are various files embedded within each SLDDRW (drawing files), SLDPRT (part files), SLDASM (assembly files) file, including preview bitmaps and metadata sub-files. Various third-party tools (see COM Structured Storage) can be used to extract these sub-files, although the sub-files in many cases use proprietary binary file formats. SolidWorks allows saving 3D model information in *.step format, which lets the model be displayed and modified in other platforms from other vendors. Associated products SolidWorks has developed also various complementary add-ins, including: PhotoWorks : 3D photorealistic rendering engine. 3DVIA Composer : content creation software for documentation, technical illustration, catalogs, commercial brochures, training documents, maintenance manuals from CAD data with updates of CAD changes. 3DEXPERIENCE Marketplace : an add-in allowing users to download 3D parts from an online catalog on make 3D printed parts on-demand See also Comparison of computer-aided design software References External links 3D graphics software Windows-only software Solid mechanics Product design Computer-aided design software for Windows 1995 software Dassault Group Proprietary software 1993 establishments in Massachusetts Companies established in 1993