CAD Files
CAD (Computer-Aided Design) files may contain 2D or 3D designs. They are generated by CAD software programs, which can be used to create models or architecture plans. 2D CAD files are often referred to as drawings, while 3D files are often called models, parts, or assemblies.
Common CAD file extensions include .DWG, .DXF, .DGN, and .STL.
| Extension | File Type | Popularity |
|---|---|---|
| .DC3 | DesignCAD 3D ASCII Drawing | 4.6 |
| .PSM | Solid Edge Sheet Metal File | 4.5 |
| .OPT | Opterecenja File | 4.4 |
| .ADI | AutoCAD Device-Independent Binary Plotter File | 4.4 |
| .BDC | West Point Bridge Designer Design File | 4.4 |
| .AXM | FormIt Sketch | 4.3 |
| .SIM | SimLab Composer Scene | 4.3 |
| .EPF | EAGLE Project | 4.3 |
| .DLV | CATIA 4 Export File | 4.3 |
| .GSM | Graphic Description Language File | 4.3 |
| .LCF | ArchiCAD Library Container File | 4.3 |
| .CPA | CADSTAR PCB Archive File | 4.3 |
| .AFS | STAAD.foundation Project File | 4.3 |
| .MHS | Xilinx XPS Hardware Specification File | 4.3 |
| .TCT | TurboCAD Drawing Template | 4.3 |
| .MP12 | Multisim 12 Project | 4.3 |
| .MCX | MICRO CADAM-X/6000 Model Data File | 4.3 |
| .JT | JT Open CAD File | 4.3 |
| .IBA | Lectra Clothing Design Pieces File | 4.2 |
| .DB1 | Tekla Structures Model File | 4.2 |
| .RTD | Robot Structural Analysis Design File | 4.2 |
| .MC9 | Mastercam 9 Geometry File | 4.2 |
| .MODEL | CATIA 3D Model | 4.2 |
| .PAT | AutoCAD Hatch Pattern File | 4.2 |
| .EDF | Edificius Project | 4.1 |
| .GCODE | G-Code 3D Printer File | 4.1 |
| .LOGICLY | Logicly Circuit File | 4.1 |
| .CAD | BobCAD-CAM File | 4.1 |
| .PSV | Pipe System Viewer File | 4.1 |
| .JOB | MetaCAM Nest Job File | 4.1 |
| .123DX | 123D Design Model File | 4.1 |
| .CIB | Luminaire Data File | 4.0 |
| .JVSG | Video Surveillance Project | 4.0 |
| .NC | DSTV Numerical Control File | 4.0 |
| .3DL | Sierra LandDesigner 3D File | 4.0 |
| .ASY | LTspice Symbol File | 4.0 |
| .CATPRODUCT | CATIA V5 Assembly File | 4.0 |
| .LI3D | Live Interior 3D Document | 4.0 |
| .PSS | AutoCAD Plot Stamp Settings File | 4.0 |
| .DRA | Dolphin PartMaster Drawing File | 4.0 |
| .RSG | RaySupreme Graph | 4.0 |
| .CAD | Autodesk QuickCAD File | 4.0 |
| .DWT | AutoCAD Drawing Template | 4.0 |
| .MTO | FastCAM MTO Text File | 4.0 |
| .AFD | Alphacam Flame Drawing | 4.0 |
| .DWFX | Design Web Format XPS File | 4.0 |
| .FCSTD1 | FreeCAD Backup Document | 4.0 |
| .CYP | Home Design Project | 4.0 |
| .RSM | RouterSim Network Visualizer File | 4.0 |
| .LIN | AutoCAD Linetype File | 4.0 |
| .IDE | Inventor iFeature | 3.9 |
| .DES | Pro/DESKTOP CAD File | 3.9 |
| .FCW | FastCAD Windows Drawing | 3.9 |
| .SAT | ACIS SAT 3D Model File | 3.9 |
| .MS14 | Multisim 14 Circuit Design File | 3.9 |
| .SKF | AutoSketch Drawing | 3.9 |
| .DST | AutoCAD Sheet Set File | 3.9 |
| .MS13 | Multisim 13 Circuit Design File | 3.9 |
| .XV3 | Lattice XVL Geometry File | 3.9 |
| .SLDPRT | SolidWorks Part File | 3.9 |
| .VET | Lectra Cutter's Must File | 3.8 |
| .SLDASM | SolidWorks Assembly File | 3.8 |
| .EDN | EDIF Implementation Netlist File | 3.8 |
| .JVSGZ | Compressed Video Surveillance Project | 3.8 |
| .PWT | AutoCAD Publish To Web Template | 3.8 |
| .BLK | AutoCAD Block Template File | 3.8 |
| .DSN | OrCAD Design File | 3.8 |
| .SPT | SpeedTree Tree Data File | 3.8 |
| .CGR | CATIA Graphical Representation File | 3.8 |
| .NC | Mastercam Numerical Control File | 3.8 |
| .BCD | RealView Debugger Board Chip Definition File | 3.8 |
| .PHJ | PhCNC Project File | 3.8 |
| .GDS | Graphic Data System File | 3.8 |
| .FZP | Fritzing XML Part Description | 3.8 |
| .DC2 | DesignCAD 2D ASCII Drawing | 3.8 |
| .DRU | EAGLE Design Rules | 3.8 |
| .CF2 | Common File Format File | 3.8 |
| .X_B | Parasolid Model Part File | 3.7 |
| .123D | Autodesk 123D Drawing | 3.7 |
| .PLN | ArchiCAD Project File | 3.7 |
| .IGS | IGES Drawing | 3.7 |
| .MP11 | Multisim 11 Project File | 3.7 |
| .CFF | Common File Format | 3.7 |
| .ISO | Arbortext IsoDraw Document | 3.7 |
| .EASM | eDrawings Assembly File | 3.7 |
| .NWF | Navisworks File Set | 3.7 |
| .JAM | Jam STAPL File | 3.7 |
| .ISOZ | Compressed Arbortext IsoDraw Illustration | 3.7 |
| .MP10 | Multisim 10 Project File | 3.7 |
| .IDV | Inventor Design View | 3.7 |
| .DC1 | DevCad Document | 3.7 |
| .DWS | AutoCAD Drawing Standards File | 3.7 |
| .ASM | Solid Edge Assembly File | 3.7 |
| .PLA | ArchiCAD Project Archive | 3.7 |
| .MSM | Multisim Circuit Design File | 3.7 |
| .MIN | Okuma CNC Program File | 3.7 |
| .GXC | General CADD Pro Component | 3.7 |
| .ART | ArtCAM Model | 3.7 |
| .ICS | IronCAD 3D Drawing File | 3.7 |
| .SHX | AutoCAD Compiled Shape File | 3.7 |
| .STL | Stereolithography File | 3.7 |
| .DGN | MicroStation Design File | 3.6 |
| .CDW | KOMPAS Document | 3.6 |
| .BMF | FloorPlan File | 3.6 |
| .FMZ | Form•Z Project File | 3.6 |
| .PRG | PC-DMIS Part Program File | 3.6 |
| .FZ | Fritzing Project File | 3.6 |
| .SCH | gEDA Schematic File | 3.6 |
| .2D | VersaCAD 2D Drawing File | 3.6 |
| .VWX | Vectorworks Design File | 3.6 |
| .PRT | Creo Parametric Part File | 3.6 |
| .ICD | IronCAD 3D Drawing File | 3.6 |
| .SVD | SolidView Design File | 3.6 |
| .DFX | Drafix CAD File | 3.6 |
| .CZD | CAD Zone Drawing | 3.6 |
| .IF | Procedimientos-Uno IFWin Project File | 3.6 |
| .DXF | Drawing Exchange Format File | 3.6 |
| .DWG | AutoCAD Drawing | 3.5 |
| .BPM | Bizagi Process Modeler | 3.5 |
| .STEP | STEP 3D Model | 3.5 |
| .BBCD | BobCAD-CAM Document | 3.5 |
| .CYP | Home Designer Pro Project File | 3.5 |
| .DXE | AutoCAD Data Extraction Template | 3.5 |
| .PRT | CADKEY Part File | 3.5 |
| .MP7 | Multisim 7 Project File | 3.5 |
| .CAM | FastCAM CAM File | 3.5 |
| .CMP | Solid Edge Wire Harness File | 3.5 |
| .WDF | Wintech Drawing File | 3.5 |
| .ACT | Alma CAD/CAM Document | 3.5 |
| .MODFEM | Femap Model | 3.5 |
| .CIRCUIT | KTechlab Circuit Design File | 3.5 |
| .DRW | Personal Designer Drawing File | 3.5 |
| .SCH | EAGLE Schematics File | 3.5 |
| .HSC | Aspen HYSYS Simulation File | 3.5 |
| .CDL | CADKEY Wireframe Design File | 3.5 |
| .GXM | General CADD Pro Macro File | 3.5 |
| .LTL | Luminaire Data File | 3.5 |
| .SAB | ACIS SAB Model File | 3.5 |
| .123 | PCB123 Circuit Board Design | 3.5 |
| .FZZ | Fritzing Shareable Project File | 3.5 |
| .CATPART | CATIA V5 Part File | 3.5 |
| .ASC | LTspice Circuit Schematic File | 3.5 |
| .A2L | ASAP2 ECU Description File | 3.5 |
| .G | BRL-CAD Geometry File | 3.5 |
| .SCAD | OpenSCAD Script | 3.4 |
| .BDL | CoCreate Bundle File | 3.4 |
| .PRT | Unigraphics Part File | 3.4 |
| .TAK | TAK 2000 Thermal Model File | 3.4 |
| .RRA | vRigger Rigging Gear File | 3.4 |
| .XISE | Xilinx ISE Project File | 3.4 |
| .MCD | MiniCAD Design File | 3.4 |
| .EWB | Electronics Workbench Circuit Design File | 3.4 |
| .CATDRAWING | CATIA V5 Drawing | 3.4 |
| .TCD | TurboCAD Mac Deluxe Drawing | 3.4 |
| .FCSTD | FreeCAD Document | 3.4 |
| .TSC | TINA Design File | 3.4 |
| .DXX | AutoCAD Drawing Interchange Attribute File | 3.4 |
| .G3D | GOM 3D File | 3.3 |
| .LDR | LDraw Model File | 3.3 |
| .LIZD | Live Interior 3D Compressed Document | 3.3 |
| .ULD | Unified Luminaire Data File | 3.3 |
| .ELD | Eulumdat Formatted Luminaire Data File | 3.3 |
| .DRW | ANVIL Drawing File | 3.3 |
| .TCM | TurboCAD Mac Drawing | 3.3 |
| .EZP | AutoCAD Ecscad Project Backup File | 3.3 |
| .FNC | QuickCAM 3D CNC File | 3.3 |
| .RED | CADViewer Redline Markup File | 3.3 |
| .CNC | PartMaster CNC File | 3.3 |
| .WDP | AutoCAD Electrical Project File | 3.3 |
| .OPJ | OrCAD Project File | 3.3 |
| .CAM | Gerber CAM Job File | 3.3 |
| .IPT | Inventor Part | 3.3 |
| .SLDDRW | SolidWorks Drawing File | 3.3 |
| .DLX | DIALux Document | 3.3 |
| .BRD | Cadence Allegro PCB Design File | 3.3 |
| .BIT | Xilinx Bitstream File | 3.3 |
| .IDW | Inventor Drawing | 3.3 |
| .OLB | OrCAD Symbol Library File | 3.3 |
| .RIG | vRigger Design File | 3.3 |
| .GCD | Generic CADD Drawing File | 3.3 |
| .123C | Autodesk 123C Drawing | 3.3 |
| .FZB | Fritzing Bin File | 3.3 |
| .CNC | CNC Machine Tool Path | 3.2 |
| .LDT | Eulumdat Formatted Luminaire Data File | 3.2 |
| .DGK | Delcam 3D Model File | 3.2 |
| .PHO | Gerber Photoplot File | 3.2 |
| .SEW | Home Embroidery Format | 3.2 |
| .ANY | AnyRail Layout Plan | 3.2 |
| .DRWDOT | SolidWorks Drawing Template | 3.2 |
| .JBC | Jam STAPL Byte-Code File | 3.2 |
| .BXL | Accelerated Designs PCB Library File | 3.2 |
| .TSF | Strater Template File | 3.2 |
| .DRG | AllyCAD Drawing File | 3.2 |
| .DC | DesignCAD Design File | 3.2 |
| .MIN | MAX Interchange Notation File | 3.2 |
| .PSF | AutoCAD PostScript Patterns File | 3.2 |
| .IAM | Inventor Assembly | 3.2 |
| .PRT | Solid Edge Part File | 3.1 |
| .GEO | TruTops Geometry File | 3.1 |
| .RDF | Relux Project File | 3.1 |
| .MS11 | Multisim 11 Circuit Design File | 3.1 |
| .NGC | Xilinx Generated Netlist File | 3.1 |
| .ARD | ArtiosCAD Workspace File | 3.1 |
| .DCD | DesignCAD Drawing | 3.1 |
| .DFT | Solid Edge Draft Document | 3.1 |
| .NWD | Navisworks Document | 3.0 |
| .EXB | CAXA Draft | 3.0 |
| .NPL | Xilinx ISE 5-6 Project File | 3.0 |
| .IFCXML | Industry Foundation Classes XML File | 3.0 |
| .NWC | Navisworks Cache File | 3.0 |
| .TOPVIW | TopSolid'Viewer Document | 3.0 |
| .RML | Redline Markup Language File | 3.0 |
| .LIA | P-CAD ASCII Library file | 3.0 |
| .IPF | iMPACT Project File | 3.0 |
| .TC3 | TurboCAD 2D/3D Mac Drawing | 3.0 |
| .LYR | bestIMAGE Design File | 3.0 |
| .SZA | HiCAD Drawing File | 3.0 |
| .IPN | Inventor Presentation | 3.0 |
| .NEU | Pro/ENGINEER Neutral File | 3.0 |
| .PM3 | Crouzet Logic Software M3 File | 3.0 |
| .T3001 | TARGET 3001! Circuit Design Project File | 3.0 |
| .FAN | Form•Z Animation File | 3.0 |
| .FZBZ | Fritzing Bundled Bin File | 3.0 |
| .NC1 | Mastercam Numerical Control File | 3.0 |
| .TCD | Technobox CAD Drawing | 3.0 |
| .MS12 | Multisim 12 Circuit Design File | 3.0 |
| .PC7 | PowerCADD 7 Drawing File | 3.0 |
| .PC6 | PowerCADD 6 Drawing File | 3.0 |
| .DGB | FlashCAD Drawing Database | 3.0 |
| .FLX | FelixCAD Drawing | 3.0 |
| .HUS | Husqvarna Embroidery File | 3.0 |
| .XBF | XCAF Binary 3D Model | 3.0 |
| .SCDOC | SpaceClaim Document | 3.0 |
| .MMG | Model Master 3 Axis Flat File | 3.0 |
| .TC2 | TurboCAD 2D Mac Drawing | 3.0 |
| .EQN | GAL Equation File | 3.0 |
| .EASMX | eDrawings Assembly XPS File | 3.0 |
| .GINSPECT_PRJ | GOM Inspect Project File | 3.0 |
| .EWD | EasyWOOD Design File | 3.0 |
| .IC3D | IC3D Scene File | 3.0 |
| .ADT | AutoCAD Audit Log | 3.0 |
| .BPMC | Bizagi Process Modeler Collaboration | 3.0 |
| .FM | FeatureCAM Part | 3.0 |
| .3W | XYZprinting Sliced Model File | 3.0 |
| .BIMX | BIM Explorer File | 3.0 |
| .MP13 | Multisim 13 Project | 3.0 |
| .PIPE | PIPE-FLO Project File | 3.0 |
| .PIPD | PIPE-FLO Demo Project File | 3.0 |
| .RCM | Autodesk Reality Capture Mesh | 3.0 |
| .CDDX | Circuit Diagram Document | 3.0 |
| .PRJPCB | Altium Designer PCB Project | 3.0 |
| .SMT | Autodesk Shape Manager Text File | 3.0 |
| .SMB | Autodesk Shape Manager Binary File | 3.0 |
| .EPRT | eDrawings File | 3.0 |
| .BRD | KiCad PCB Design File | 2.9 |
| .X_T | Parasolid Model Part File | 2.9 |
| .IPJ | Inventor Project | 2.9 |
| .KIT | 2020 Design Live File | 2.9 |
| .PRO | KiCad Project | 2.8 |
| .VND | Type3 Design File | 2.8 |
| .MP14 | Multisim 14 Project | 2.8 |
| .PSU | PSU Designer Document | 2.8 |
| .TBP | Tekla BIMsight Project | 2.8 |
| .ATT | Alphacam Lathe Tool File | 2.8 |
| .GXD | General CADD Pro Drawing | 2.8 |
| .LYC | bestIMAGE Compressed Design File | 2.8 |
| .TCP | TurboCAD Mac Pro Drawing | 2.8 |
| .HSF | HOOPS Stream Format File | 2.8 |
| .RCD | LEGO MINDSTORMS Recording File | 2.8 |
| .TCW | TurboCAD Drawing File | 2.7 |
| .VTF | 3DESIGN CAD File | 2.7 |
| .MDL | Lectra Modaris Clothing Design File | 2.7 |
| .MVS | Microchip Verification Specification File | 2.7 |
| .TOP | TopSolid Design Document | 2.7 |
| .FPD | Front Panel Designer Project | 2.6 |
| .CRV | VCarve Pro Design File | 2.6 |
| .SCH | KiCad Schematic File | 2.5 |
| .PCS | Pfaff Embroidery File | 2.5 |
| .MP8 | Multisim 8 Project | 2.5 |
| .EDRW | SolidWorks eDrawings File | 2.5 |
| .NGD | Xilinx Netlist File | 2.5 |
| .CIR | Micro-Cap Schematic | 2.5 |
| .SBP | OpenSBP CNC Program File | 2.5 |
| .SMG | SolidWorks Composer File | 2.5 |
| .DVG | Graphic Works Vector Graphic | 2.4 |
| .LAY6 | Sprint Layout 6 PCB Layout File | 2.4 |
| .RS | RapidSketch Document | 2.3 |
| .ISE | Xilinx ISE Project | 2.3 |
| .SYM | gEDA Symbol File | 2.3 |
| .3DC | RoboCell Cell Setup File | 2.3 |
| .CND | Melco Condensed Embroidery File | 2.3 |
| .DBQ | AutoCAD Query Set | 2.3 |
| .DRA | OrCAD Drawing File | 2.3 |
| .SDG | Strater Project File | 2.2 |
| .CKD | KeyCreator Design File | 2.2 |
| .GBX | Gerber PCB File | 2.1 |
| .BSW | StruWalker 3D Model | 2.1 |
| .TCX | TurboCAD 3D Model Text File | 2.0 |
| .DSNWRK | Altium Designer Workspace File | 2.0 |
| .MS7 | Multisim 7 Circuit Design File | 2.0 |
| .FZM | Fritzing Module File | 2.0 |
| .MS9 | Multisim 9 Circuit Design File | 2.0 |
| .GXH | General CADD Pro Hatch Pattern File | 2.0 |
| .FPC | FreePCB Printed Circuit Board Layout | 2.0 |
| .SST | Artec Studio Project | 2.0 |
| .AD_PRT | Alibre Design Part | 2.0 |
| .CYG | Home Design Object | 2.0 |
| .LIBPKG | Altium Designer Integrated Library Package | 2.0 |
| .L3B | LEGO 3D Model File | 2.0 |
| .PRJSCR | Altium Designer Script Project | 2.0 |
| .PRJMBD | Altium Designer Multi-board Project | 2.0 |
| .FPP | Front Panel Project | 2.0 |
| .DXO | DesignXOver Speaker Circuit Design File | 2.0 |
| .QPM | Quick Pallet Maker Input Data | 2.0 |
| .CKT | KeyCreator Design Template | 2.0 |
| .PWD | Solid Edge Weldment Document | 2.0 |
| .IDCL | Inventor Desktop Content Library File | 2.0 |
| .SCH | ExpressSCH Schematics File | 2.0 |
| .BSWX | BIMReview 3D Model | 2.0 |
| .XNC | Exchange NC File | 2.0 |
| .UNT | AutoCAD Unit Definition File | 2.0 |
| .RCV | RoofCon Viewer Project File | 2.0 |
| .MP9 | Multisim 9 Project File | 1.9 |
| .MOD | Femap Model | 1.8 |
| .BPZ | Easy Blue Print Symbol Library | 1.8 |
| .TOPPRJ | TopSolid Project File | 1.8 |
| .DSG | Control Studio Document | 1.7 |
| .IFCZIP | Compessed IFC File | 1.5 |
| .DC2 | DevCad Cam Pro Document | 1.5 |
| .HCP | HydroCAD Project File | 1.4 |
| .UPF | Unified Power Format File | 1.3 |
| .EZC | AutoCAD Ecscad Components Backup File | 1.3 |
| .CEL | MicroStation Cell Library | 1.3 |
| .CMP | Generic CADD Component File | 1.0 |
| .FCD | FastCAD DOS Drawing | 1.0 |
| .BREP | BRep 3D Model File | 1.0 |