D |
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| DXF | AutoCAD File Exchange format. DXF files usually correspond to ASCII format. Binary DXF files are also supported at import. |
| DWG | AutoCAD File format (binary format ). Both DXF and DWG Files have the same content but under a different format. |
I |
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| IGES | The Initial Graphic Exchange Specification (IGES) format, is a neutral format to transfer data between heterogeneous CAD systems. |
S |
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| STEP | STEP AP203 / AP214 formats (Standard for the Exchange of Product model data) |