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