| .3DREP | Dassault Systèmes | Datafiler | CATIA 3D Geometry Data | CATIA | Dassault Systèmes |
| .3DXML | Dassault Systèmes | 3D-billedfiler | Dassault Systemes 3D XML File | 3D XML Player | Dassault Systèmes |
| .C18 | Dassault Systèmes | CAD-filer | Dassault Systemes Catia V4 Sequential File | Dassault Systemes CATIA | Dassault Systèmes |
| .CAE | Dassault Systèmes | CAD-filer | Abaqus CAE Model File | Abaqus/Standard | Dassault Systèmes |
| .CATALOG | Dassault Systèmes | CAD-filer | CATIA Catalog File | CATIA | Dassault Systèmes |
| .CATDRAWING | Dassault Systèmes | CAD-filer | CATIA V5 Drawing | Dassault Systemes CATIA | Dassault Systèmes |
| .CATFCT | Dassault Systèmes | CAD-filer | CATIA CATfct Data File | CATIA | Dassault Systèmes |
| .CATMATERIAL | Dassault Systèmes | CAD-filer | CATIA CATMaterial Data | CATIA | Dassault Systèmes |
| .CATPART | Dassault Systèmes | CAD-filer | CATIA V5 Part File | CATIA | Dassault Systèmes |
| .CATPRODUCT | Dassault Systèmes | CAD-filer | CATIA V5 Assembly File | Dassault Systemes CATIA | Dassault Systèmes |
| .CDD | CS Odessa | Vektorbilledfiler | ConceptDraw PRO Document | CADAM | Dassault Systèmes |
| .CEX | Dassault Systèmes | Indstillingsfiler | SolidWorks Enterprise PDM Vault Export File | Dassault Systemes SolidWorks | Dassault Systèmes |
| .CGR | Dassault Systèmes | CAD-filer | CATIA Graphical Representation File | CATIA | Dassault Systèmes |
| .DLV | Dassault Systèmes | CAD-filer | CATIA 4 Export File | CATIA | Dassault Systèmes |
| .DTM | Prodatron | Lydfiler | DigiTrakker Audio Module | Surpac | Dassault Systèmes |
| .DWG | Autodesk, Inc. | CAD-filer | AutoCAD Drawing Database File | DraftSight | Dassault Systèmes |
| .DXF | Autodesk, Inc. | CAD-filer | Drawing Exchange Format | SolidWorks eDrawings Viewer | Dassault Systèmes |
| .E3D | Macromedia | 3D-billedfiler | Macromedia Extreme 3D Object | Dassault Systemes SolidWorks | Dassault Systèmes |
| .EASM | Dassault Systèmes | CAD-filer | eDrawings Assembly File | Dassault Systemes SolidWorks | Dassault Systèmes |
| .EASMX | Dassault Systèmes | Sideopsætningsfiler | SolidWorks eDrawings XPS Assembly File | SOLIDWORKS | Dassault Systèmes |
| .EDRW | Dassault Systèmes | CAD-filer | SolidWorks eDrawings File | Dassault Systemes SolidWorks | Dassault Systèmes |
| .EDRWX | Dassault Systèmes | CAD-filer | SolidWorks eDrawings XPS Drawing Document File | SOLIDWORKS | Dassault Systèmes |
| .EPRT | Dassault Systèmes | CAD-filer | eDrawings File | Dassault Systemes SolidWorks | Dassault Systèmes |
| .EWG | Dassault Systèmes | Datafiler | SolidWorks File Format | SOLIDWORKS | Dassault Systèmes |
| .EXP | Unknown Developer | Udviklerfiler | Symbols Export File | CATIA | Dassault Systèmes |
| .EXPORT | Dassault Systèmes | CAD-filer | CATIA Export Data | CATIA | Dassault Systèmes |
| .FIN | Interscape | Tekstfiler | Sapir Torah Text | Abaqus/Standard | Dassault Systèmes |
| .GGP | Dassault Systèmes | Grafiske Filer | GemCom Graphic Format File | GEOVIA | Dassault Systèmes |
| .GL | John Bridges | Videofiler | GRASP Animation | Dassault Systemes CATIA | Dassault Systèmes |
| .GRASP | John Bridges | Videofiler | GRASP Animation | Dassault Systemes CATIA | Dassault Systèmes |
| .HSF | Tech Soft 3D | CAD-filer | HOOPS Stream Format File | CATIA | Dassault Systèmes |
| .IGS | United States Air Force | CAD-filer | Initial Graphics Exchange Specification Drawing File | SOLIDWORKS | Dassault Systèmes |
| .INP | Concept Software | Sideopsætningsfiler | Urdu InPage Document | ABAQUS software suite | Dassault Systèmes |
| .MO | Dassault Systèmes | Datafiler | Dymola Simulation File | Dymola | Dassault Systèmes |
| .MOD | Open Source | Lydfiler | Amiga Music Module File | CATIA | Dassault Systèmes |
| .MODEL | Dassault Systèmes | CAD-filer | MODEL | Dassault Systemes CATIA | Dassault Systèmes |
| .MOS | MamiyaLeaf | Kamera Ubehandlede Filer | Leaf Camera RAW File | Dymola | Dassault Systèmes |
| .NMO | Dassault Systèmes | Datafiler | 3DVIA Virtools Behavioral Object File | 3DVIA Virtools | Dassault Systèmes |
| .OBJ | Wavefront Technologies | 3D-billedfiler | Wavefront 3D Object File | Dassault Systemes SolidWorks | Dassault Systèmes |
| .ODB | Various Developers | Databasefiler | OpenDocument Database | Abaqus/Standard | Dassault Systèmes |
| .PLB | Microsoft Corporation | Datafiler | Microsoft Robotics Developer Studio Playback Data | BIOVIA Insight | Dassault Systèmes |
| .PRTDOT | Dassault Systèmes | CAD-filer | SolidWorks Part Template | Dassault Systemes SolidWorks | Dassault Systèmes |
| .SAB | Spatial Corp | CAD-filer | ACIS SAB Model File | 3D ACIS Modeler | Dassault Systèmes |
| .SAT | Spatial Corp | CAD-filer | ACIS SAT 3D Model File | Dassault Systemes SolidWorks | Dassault Systèmes |
| .SESSION | Dassault Systèmes | 3D-billedfiler | CATIA 4 Session File | Dassault Systemes CATIA | Dassault Systèmes |
| .SLDASM | Dassault Systèmes | CAD-filer | SolidWorks Assembly File | Dassault Systemes SolidWorks | Dassault Systèmes |
| .SLDDRW | Dassault Systèmes | CAD-filer | SolidWorks Drawing File | Dassault Systemes SolidWorks | Dassault Systèmes |
| .SLDLFP | Dassault Systèmes | Grafiske Filer | SolidWorks Library Part | Dassault Systemes SolidWorks | Dassault Systèmes |
| .SLDPRT | Dassault Systèmes | CAD-filer | SolidWorks CAD Part File | Dassault Systemes SolidWorks | Dassault Systèmes |
| .SMG | Dassault Systèmes | Grafiske Filer | 3DVia Composer Model | 3DVIA | Dassault Systèmes |
| .STA | Dassault Systèmes | Datafiler | ABAQUS Status File | ABAQUS software suite | Dassault Systèmes |
| .STEP | Unknown Developer | 3D-billedfiler | STEP 3D Model | Dassault Systemes SolidWorks | Dassault Systèmes |
| .STL | 3D Systems | CAD-filer | Stereolithography File | Dassault Systemes CATIA | Dassault Systèmes |
| .STP | Unknown Developer | 3D-billedfiler | STEP 3D CAD File | CATIA | Dassault Systèmes |
| .SWJ | Dassault Systèmes | Ikke Almindelige Filer | SolidWorks Journal File | SOLIDWORKS | Dassault Systèmes |
| .VMO | Siemens AG | Lydfiler | Siemens Voice Memo File | 3DVIA Virtools | Dassault Systèmes |
| .XPR | Parametric Technology Corporation | 3D-billedfiler | Pro/ENGINEER Part Instance Accelerator File | Dassault Systemes SolidWorks | Dassault Systèmes |
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