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 |
|---|---|---|
| .DSNX | RoadEng Location Design Document | 4.4 |
| .TERX | RoadEng Terrain Design Document | 4.4 |
| .OPT | Opterecenja File | 4.4 |
| .BDC | West Point Bridge Designer Design File | 4.4 |
| .DLV | CATIA 4 Export File | 4.3 |
| .AXM | FormIt Sketch | 4.3 |
| .SIM | SimLab Composer Scene | 4.3 |
| .EPF | EAGLE Project | 4.3 |
| .CIR | Micro-Cap Schematic | 4.3 |
| .PSM | Solid Edge Sheet Metal File | 4.3 |
| .CPA | CADSTAR PCB Archive File | 4.3 |
| .AFS | STAAD.foundation Project File | 4.3 |
| .TCT | TurboCAD Drawing Template | 4.3 |
| .MCX | MICRO CADAM-X/6000 Model Data File | 4.3 |
| .MP12 | Multisim 12 Project | 4.3 |
| .MHS | Xilinx XPS Hardware Specification File | 4.3 |
| .IBA | Lectra Clothing Design Pieces File | 4.2 |
| .GSM | Graphic Description Language File | 4.2 |
| .JT | JT Open CAD File | 4.2 |
| .DB1 | Tekla Structures Model File | 4.2 |
| .EDF | Edificius Project | 4.2 |
| .PAT | AutoCAD Hatch Pattern File | 4.2 |
| .MC9 | Mastercam 9 Geometry File | 4.2 |
| .RTD | Robot Structural Analysis Design File | 4.2 |
| .LCF | ArchiCAD Library Container File | 4.2 |
| .LOGICLY | Logicly Circuit File | 4.1 |
| .GCODE | G-Code 3D Printer File | 4.1 |
| .CATPRODUCT | CATIA V5 Assembly File | 4.1 |
| .PSV | Pipe System Viewer File | 4.1 |
| .CAD | BobCAD-CAM File | 4.1 |
| .JOB | MetaCAM Nest Job File | 4.1 |
| .DWT | AutoCAD Drawing Template | 4.0 |
| .IDE | Inventor iFeature | 4.0 |
| .ASY | LTspice Symbol File | 4.0 |
| .DC3 | DesignCAD 3D ASCII Drawing | 4.0 |
| .JVSG | Video Surveillance Project | 4.0 |
| .AFD | Alphacam Flame Drawing | 4.0 |
| .PC7 | PowerCADD 7 Drawing File | 4.0 |
| .RSG | RaySupreme Graph | 4.0 |
| .FCSTD1 | FreeCAD Backup Document | 4.0 |
| .LI3D | Live Interior 3D Document | 4.0 |
| .CIB | Luminaire Data File | 4.0 |
| .FCW | FastCAD Windows Drawing | 4.0 |
| .CAD | Autodesk QuickCAD File | 4.0 |
| .MTO | FastCAM MTO Text File | 4.0 |
| .DRA | Dolphin PartMaster Drawing File | 4.0 |
| .123DX | 123D Design Model File | 4.0 |
| .3DL | Sierra LandDesigner 3D File | 4.0 |
| .GDS | Graphic Data System File | 4.0 |
| .CYP | Home Design Project | 4.0 |
| .NC | DSTV Numerical Control File | 4.0 |
| .ADI | AutoCAD Device-Independent Binary Plotter File | 4.0 |
| .PSS | AutoCAD Plot Stamp Settings File | 4.0 |
| .MODEL | CATIA 3D Model | 4.0 |
| .SAT | ACIS SAT 3D Model | 3.9 |
| .DES | Pro/DESKTOP CAD File | 3.9 |
| .LIN | AutoCAD Linetype File | 3.9 |
| .SKF | AutoSketch Drawing | 3.9 |
| .MS14 | Multisim 14 Circuit Design File | 3.9 |
| .DWFX | Design Web Format XPS File | 3.9 |
| .MS13 | Multisim 13 Circuit Design File | 3.9 |
| .XV3 | Lattice XVL Geometry File | 3.9 |
| .SLDASM | SolidWorks Assembly | 3.8 |
| .FZB | Fritzing Bin File | 3.8 |
| .VET | Lectra Cutter's Must File | 3.8 |
| .BLK | AutoCAD Block Template 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 |
| .DSN | OrCAD Design File | 3.8 |
| .SLDPRT | SolidWorks Part | 3.8 |
| .SPT | SpeedTree Tree Data File | 3.8 |
| .CGR | CATIA Graphical Representation File | 3.8 |
| .STL | Stereolithography File | 3.8 |
| .PLN | ArchiCAD Project File | 3.8 |
| .DST | AutoCAD Sheet Set | 3.8 |
| .FZP | Fritzing XML Part Description | 3.8 |
| .DC2 | DesignCAD 2D ASCII Drawing | 3.8 |
| .CF2 | Common File Format File | 3.8 |
| .BCD | RealView Debugger Board Chip Definition File | 3.8 |
| .PHJ | PhCNC Project File | 3.8 |
| .DRU | EAGLE Design Rules | 3.8 |
| .ICD | IronCAD 2D Drawing File | 3.8 |
| .NC | Mastercam Numerical Control File | 3.7 |
| .123D | Autodesk 123D Drawing | 3.7 |
| .IGS | IGES Drawing | 3.7 |
| .CFF | Common File Format | 3.7 |
| .MP11 | Multisim 11 Project File | 3.7 |
| .ISO | Arbortext IsoDraw Document | 3.7 |
| .MP10 | Multisim 10 Project File | 3.7 |
| .NWF | Navisworks File Set | 3.7 |
| .IDV | Inventor Design View | 3.7 |
| .MSM | Multisim Circuit Design File | 3.7 |
| .ASM | Solid Edge Assembly File | 3.7 |
| .ISOZ | Compressed Arbortext IsoDraw Illustration | 3.7 |
| .DWS | AutoCAD Drawing Standards File | 3.7 |
| .DC1 | DevCad Document | 3.7 |
| .PLA | ArchiCAD Project Archive | 3.7 |
| .DGN | MicroStation Design File | 3.6 |
| .STP | STEP 3D CAD File | 3.6 |
| .JAM | Jam STAPL File | 3.6 |
| .MIN | Okuma CNC Program File | 3.6 |
| .SHX | AutoCAD Compiled Shape File | 3.6 |
| .MP7 | Multisim 7 Project File | 3.6 |
| .BMF | FloorPlan File | 3.6 |
| .2D | VersaCAD 2D Drawing File | 3.6 |
| .FZ | Fritzing Project File | 3.6 |
| .ICS | IronCAD 3D Scene | 3.6 |
| .FMZ | Form•Z Project File | 3.6 |
| .BDL | CoCreate Bundle File | 3.6 |
| .SCH | gEDA Schematic File | 3.6 |
| .PRG | PC-DMIS Part Program File | 3.6 |
| .RSM | RouterSim Network Visualizer File | 3.6 |
| .CZD | CAD Zone Drawing | 3.6 |
| .SVD | SolidView Design File | 3.6 |
| .IF | Procedimientos-Uno IFWin Project File | 3.6 |
| .CNC | PartMaster CNC File | 3.6 |
| .ART | ArtCAM Model | 3.6 |
| .DXX | AutoCAD Drawing Interchange Attribute File | 3.6 |
| .X_B | Parasolid Model Part File | 3.6 |
| .VWX | Vectorworks Design File | 3.6 |
| .EASM | eDrawings Assembly File | 3.6 |
| .CDW | KOMPAS Document | 3.5 |
| .DWG | AutoCAD Drawing | 3.5 |
| .PRT | Creo Parametric Part | 3.5 |
| .STEP | STEP 3D Model | 3.5 |
| .DXE | AutoCAD Data Extraction Template | 3.5 |
| .BBCD | BobCAD-CAM Document | 3.5 |
| .CAM | FastCAM CAM File | 3.5 |
| .123 | PCB123 Circuit Board Design | 3.5 |
| .GXC | General CADD Pro Component | 3.5 |
| .DFX | Drafix CAD File | 3.5 |
| .GXM | General CADD Pro Macro File | 3.5 |
| .EZD | EzCad2 Laser Engraving Design | 3.5 |
| .CYP | Home Designer Pro Project File | 3.5 |
| .LTL | Luminaire Data File | 3.5 |
| .DRW | Personal Designer Drawing File | 3.5 |
| .ACT | Alma CAD/CAM Document | 3.5 |
| .HSC | Aspen HYSYS Simulation File | 3.5 |
| .FPC | FreePCB Printed Circuit Board Layout | 3.5 |
| .LIBPKG | Altium Designer Integrated Library Package | 3.5 |
| .SAB | ACIS SAB Model | 3.5 |
| .MODFEM | Femap Model | 3.5 |
| .CIRCUIT | KTechlab Circuit Design File | 3.5 |
| .UNT | AutoCAD Unit Definition File | 3.5 |
| .ANY | AnyRail Layout Plan | 3.5 |
| .CMP | Solid Edge Wire Harness File | 3.5 |
| .LDR | LDraw Model File | 3.5 |
| .WDF | Wintech Drawing File | 3.5 |
| .FZZ | Fritzing Shareable Project File | 3.5 |
| .SCH | EAGLE Schematics File | 3.5 |
| .DXF | Drawing Exchange Format File | 3.5 |
| .ASC | LTspice Circuit Schematic File | 3.5 |
| .PRT | CADKEY Part File | 3.5 |
| .MCD | MiniCAD Design File | 3.5 |
| .CDL | CADKEY Wireframe Design File | 3.5 |
| .CATPART | CATIA V5 Part File | 3.5 |
| .SCAD | OpenSCAD Script | 3.4 |
| .PRT | Unigraphics Part File | 3.4 |
| .G | BRL-CAD Geometry File | 3.4 |
| .RRA | vRigger Rigging Gear File | 3.4 |
| .TAK | TAK 2000 Thermal Model File | 3.4 |
| .PSF | AutoCAD PostScript Patterns File | 3.4 |
| .BPM | Bizagi Process Modeler | 3.4 |
| .EWB | Electronics Workbench Circuit Design File | 3.4 |
| .TSC | TINA Design File | 3.4 |
| .CATDRAWING | CATIA V5 Drawing | 3.4 |
| .FCSTD | FreeCAD Document | 3.4 |
| .TCD | TurboCAD Mac Deluxe Drawing | 3.4 |
| .IDW | Inventor Drawing | 3.4 |
| .LDT | Eulumdat Formatted Luminaire Data File | 3.4 |
| .EZP | AutoCAD Ecscad Project Backup File | 3.3 |
| .LIZD | Live Interior 3D Compressed Document | 3.3 |
| .NC1 | Mastercam Numerical Control File | 3.3 |
| .TCM | TurboCAD Mac Drawing | 3.3 |
| .ELD | Eulumdat Formatted Luminaire Data File | 3.3 |
| .G3D | GOM 3D File | 3.3 |
| .XISE | Xilinx ISE Project File | 3.3 |
| .DRW | ANVIL Drawing File | 3.3 |
| .ULD | Unified Luminaire Data File | 3.3 |
| .FNC | QuickCAM 3D CNC File | 3.3 |
| .RED | CADViewer Redline Markup File | 3.3 |
| .OPJ | OrCAD Project File | 3.3 |
| .CAM | Gerber CAM Job File | 3.3 |
| .TSF | Strater Template File | 3.3 |
| .IPT | Inventor Part | 3.3 |
| .SLDDRW | SolidWorks Drawing | 3.3 |
| .WDP | AutoCAD Electrical Project File | 3.3 |
| .DLX | DIALux Document | 3.3 |
| .IAM | Inventor Assembly | 3.3 |
| .A2L | ASAP2 ECU Description File | 3.3 |
| .BRD | Cadence Allegro PCB Design | 3.3 |
| .BIT | Xilinx Bitstream File | 3.3 |
| .DC | DesignCAD Design File | 3.3 |
| .OLB | OrCAD Symbol Library File | 3.3 |
| .RIG | vRigger Design File | 3.3 |
| .123C | Autodesk 123C Drawing | 3.3 |
| .IPN | Inventor Presentation | 3.3 |
| .CNC | CNC Machine Tool Path | 3.2 |
| .DGK | Delcam 3D Model File | 3.2 |
| .JBC | Jam STAPL Byte-Code File | 3.2 |
| .SEW | Home Embroidery Format | 3.2 |
| .GCD | Generic CADD Drawing File | 3.2 |
| .DRWDOT | SolidWorks Drawing Template | 3.2 |
| .DRG | AllyCAD Drawing File | 3.2 |
| .BXL | Accelerated Designs PCB Library File | 3.2 |
| .MIN | MAX Interchange Notation File | 3.2 |
| .PHO | Gerber Photoplot File | 3.2 |
| .GEO | TruTops Geometry File | 3.1 |
| .PRT | Solid Edge Part File | 3.1 |
| .MS11 | Multisim 11 Circuit Design File | 3.1 |
| .RDF | Relux Project File | 3.1 |
| .ARD | ArtiosCAD Workspace File | 3.1 |
| .NGC | Xilinx Generated Netlist File | 3.1 |
| .DCD | DesignCAD Drawing | 3.1 |
| .DFT | Solid Edge Draft Document | 3.1 |
| .EQN | GAL Equation File | 3.0 |
| .PM3 | Crouzet Logic Software M3 File | 3.0 |
| .LIA | P-CAD ASCII Library file | 3.0 |
| .NPL | Xilinx ISE 5-6 Project File | 3.0 |
| .IFCXML | Industry Foundation Classes XML File | 3.0 |
| .XBF | XCAF Binary 3D Model | 3.0 |
| .XNC | Exchange NC File | 3.0 |
| .ADT | AutoCAD Audit Log | 3.0 |
| .MS12 | Multisim 12 Circuit Design File | 3.0 |
| .FZBZ | Fritzing Bundled Bin File | 3.0 |
| .BREP | BRep 3D Model File | 3.0 |
| .TOPVIW | TopSolid'Viewer Document | 3.0 |
| .GINSPECT_PRJ | GOM Inspect Project File | 3.0 |
| .EPRT | eDrawings File | 3.0 |
| .MP13 | Multisim 13 Project | 3.0 |
| .BIMX | BIM Explorer File | 3.0 |
| .3W | XYZprinting Sliced Model File | 3.0 |
| .NEU | Pro/ENGINEER Neutral File | 3.0 |
| .BPMC | Bizagi Process Modeler Collaboration | 3.0 |
| .IC3D | IC3D Scene File | 3.0 |
| .EWD | EasyWOOD Design File | 3.0 |
| .TC2 | TurboCAD 2D Mac Drawing | 3.0 |
| .SZA | HiCAD Drawing File | 3.0 |
| .PC6 | PowerCADD 6 Drawing File | 3.0 |
| .PIPD | PIPE-FLO Demo Project File | 3.0 |
| .TC3 | TurboCAD 2D/3D Mac Drawing | 3.0 |
| .FPD | Front Panel Designer Project | 3.0 |
| .FAN | Form•Z Animation File | 3.0 |
| .IPF | iMPACT Project File | 3.0 |
| .NWC | Navisworks Cache File | 3.0 |
| .HUS | Husqvarna Embroidery File | 3.0 |
| .MMG | Model Master 3 Axis Flat File | 3.0 |
| .SCDOC | SpaceClaim Document | 3.0 |
| .RCM | Autodesk Reality Capture Mesh | 3.0 |
| .DGB | FlashCAD Drawing Database | 3.0 |
| .TCD | Technobox CAD Drawing | 3.0 |
| .T3001 | TARGET 3001! Circuit Design Project File | 3.0 |
| .SMT | Autodesk Shape Manager Text File | 3.0 |
| .PRJPCB | Altium Designer PCB Project | 3.0 |
| .TGI | TowGeom Input File | 3.0 |
| .PRTDOT | SolidWorks Part Template | 3.0 |
| .SMB | Autodesk Shape Manager Binary File | 3.0 |
| .EASMX | eDrawings Assembly XPS File | 3.0 |
| .FLX | FelixCAD Drawing | 3.0 |
| .ASMDOT | SolidWorks Assembly Template | 3.0 |
| .NWD | Navisworks Document | 3.0 |
| .BRD | KiCad PCB Design File | 2.9 |
| .EXB | CAXA Draft | 2.9 |
| .CDDX | Circuit Diagram Document | 2.9 |
| .IPJ | Inventor Project | 2.9 |
| .PRO | KiCad Project | 2.8 |
| .VND | Type3 Design File | 2.8 |
| .X_T | Parasolid Model Part File | 2.8 |
| .TBP | Tekla BIMsight Project | 2.8 |
| .PIPE | PIPE-FLO Project File | 2.8 |
| .MP14 | Multisim 14 Project | 2.8 |
| .LYR | bestIMAGE Design File | 2.8 |
| .RCD | LEGO MINDSTORMS Recording File | 2.8 |
| .ATT | Alphacam Lathe Tool File | 2.8 |
| .HSF | HOOPS Stream Format File | 2.8 |
| .GXD | General CADD Pro Drawing | 2.8 |
| .PSU | PSU Designer Document | 2.7 |
| .TCW | TurboCAD Drawing File | 2.7 |
| .VTF | 3DESIGN CAD File | 2.7 |
| .TOP | TopSolid Design Document | 2.7 |
| .MVS | Microchip Verification Specification File | 2.7 |
| .TCP | TurboCAD Mac Pro Drawing | 2.7 |
| .MDL | Lectra Modaris Clothing Design File | 2.7 |
| .KIT | 2020 Design Live File | 2.7 |
| .LAY6 | Sprint Layout 6 PCB Layout File | 2.6 |
| .NGD | Xilinx Netlist File | 2.6 |
| .RML | Redline Markup Language File | 2.6 |
| .CRV | VCarve Pro Design File | 2.6 |
| .LYC | bestIMAGE Compressed Design File | 2.6 |
| .DSNWRK | Altium Designer Workspace File | 2.5 |
| .EDRW | SolidWorks eDrawings File | 2.5 |
| .MP8 | Multisim 8 Project | 2.5 |
| .SCH | KiCad Schematic File | 2.5 |
| .PCS | Pfaff Embroidery File | 2.5 |
| .TOPPRJ | TopSolid Project | 2.4 |
| .DBQ | AutoCAD Query Set | 2.3 |
| .DRA | OrCAD Drawing File | 2.3 |
| .3DC | RoboCell Cell Setup File | 2.3 |
| .ISE | Xilinx ISE Project | 2.3 |
| .RS | RapidSketch Document | 2.3 |
| .SYM | gEDA Symbol File | 2.3 |
| .CND | Melco Condensed Embroidery File | 2.3 |
| .SMG | SolidWorks Composer File | 2.3 |
| .SDG | Strater Project File | 2.2 |
| .CKD | KeyCreator Design File | 2.2 |
| .SBP | OpenSBP CNC Program File | 2.2 |
| .DVG | Graphic Works Vector Graphic | 2.2 |
| .GBX | Gerber PCB File | 2.1 |
| .BSW | StruWalker 3D Model | 2.1 |
| .EZC | AutoCAD Ecscad Components Backup File | 2.0 |
| .FZM | Fritzing Module File | 2.0 |
| .SST | Artec Studio Project | 2.0 |
| .AD_PRT | Alibre Design Part | 2.0 |
| .CYG | Home Design Object | 2.0 |
| .TCX | TurboCAD 3D Model Text File | 2.0 |
| .PRJSCR | Altium Designer Script Project | 2.0 |
| .FM | FeatureCAM Part | 2.0 |
| .MS9 | Multisim 9 Circuit Design File | 2.0 |
| .MS7 | Multisim 7 Circuit Design File | 2.0 |
| .PRJMBD | Altium Designer Multi-board Project | 2.0 |
| .FPP | Front Panel Project | 2.0 |
| .GXH | General CADD Pro Hatch Pattern File | 2.0 |
| .QPM | Quick Pallet Maker Input Data | 2.0 |
| .PWD | Solid Edge Weldment Document | 2.0 |
| .L3B | LEGO 3D Model File | 2.0 |
| .BSWX | BIMReview 3D Model | 2.0 |
| .RCV | RoofCon Viewer Project File | 2.0 |
| .SCH | ExpressSCH Schematics File | 2.0 |
| .IDCL | Inventor Desktop Content Library File | 2.0 |
| .CKT | KeyCreator Design Template | 2.0 |
| .DXO | DesignXOver Speaker Circuit Design File | 2.0 |
| .MP9 | Multisim 9 Project File | 2.0 |
| .BPZ | Easy Blue Print Symbol Library | 1.8 |
| .MOD | Femap Model | 1.7 |
| .DSG | Control Studio Document | 1.7 |
| .DC2 | DevCad Cam Pro Document | 1.5 |
| .IFCZIP | Compessed IFC File | 1.5 |
| .HCP | HydroCAD Project File | 1.4 |
| .UPF | Unified Power Format File | 1.3 |
| .CEL | MicroStation Cell Library | 1.3 |
| .CMP | Generic CADD Component File | 1.0 |
| .FCD | FastCAD DOS Drawing | 1.0 |