The following information provides some insight in how the different file format structures work.
Name | Extension | Polygon Import | Polygon Export | NURBS Import | NURBS Export |
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Wire format (Autodesk) | .wire | ||||
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C4 format (Standard CAD)IGES subset format. | .c4x | ||||
STEP format ISO standard industrial automation systems product data representation and exchange format. | .stp.step | ||||
Inventor (Windows only)C4 format Translations require Autodesk Inventor or Autodesk Inventor Viewer to be installed. | .iv | ||||
PTC Granite format (Windows only)(PRO/ENGNINEER or any Granite based system) | .g.prt (Pro/E part file).asm (Pro/E assembly file) | ||||
JAMAIS format (Standard CAD)Japan Automobile Association IGES subset. | .igs | ||||
VDAIS format (Standard CAD)Verband des Automobilindustrie - IGES Subset. | .iges | ||||
VDAFS format (Standard CAD)Verband des Automobilindustrie - FlachenSchnittstelle. | .vda | ||||
DES format (Standard CAD)Data Exchange Standard. Contains polylines. Requires less space than equivalent IGES files. | .des | ||||
DWG format (Windows only) (AutoDesk)Drawing Format. | .dwg | ||||
DXF format (Windows only) (AutoDesk)Drawing Exchange Format. | .dxf | ||||
SLC header information (Solid Imaging)3D Systems Slice format. | .slc | ||||
STL Format (Solid Imaging)3D Systems SLA file format. Used to send data to a stereo lithography machine. Binary and ASCII format. | .stl | ||||
CAI format for CATIA V4 files (Windows only) (CATIA)CATIA Alias Inter operate ability file format. | .cai | ||||
CATIA V5 format (Windows only) | .CATPart.CATProduct | ||||
OBJ format (Autodesk) | .obj | ||||
Encapsulated Postscript format (Standard) | .eps | ||||
VRML formatVirtual Reality Modeling Language(3D Object Oriented Toolkit) | |||||
Pro/ENGINEER Render file format | .slp | ||||
IGES format (SolidDesigner)Initial Graphics Exchange. | .iges, .igs | ||||
OpenInventor format (Windows only) | .iv | ||||
Illustrator format | .ai | ||||
UGS NX (Unigraphics) part and assembly format (Windows only) | .prt |