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 |
|---|---|---|
| .AXM | FormIt Sketch | 4.5 |
| .OPT | Opterecenja File | 4.5 |
| .BDC | West Point Bridge Designer Design File | 4.4 |
| .IBA | Lectra Clothing Design Pieces File | 4.4 |
| .SIM | SimLab Composer Scene | 4.3 |
| .EPF | EAGLE Project | 4.3 |
| .DLV | CATIA 4 Export File | 4.3 |
| .CPA | CADSTAR PCB Archive File | 4.3 |
| .PSM | Solid Edge Sheet Metal File | 4.3 |
| .CIR | Micro-Cap Schematic | 4.3 |
| .AFS | STAAD.foundation Project File | 4.3 |
| .MCX | MICRO CADAM-X/6000 Model Data File | 4.3 |
| .TCT | TurboCAD Drawing Template | 4.3 |
| .MHS | Xilinx XPS Hardware Specification File | 4.3 |
| .MP12 | Multisim 12 Project | 4.3 |
| .PAT | AutoCAD Hatch Pattern File | 4.2 |
| .LOGICLY | Logicly Circuit File | 4.2 |
| .JT | JT Open CAD File | 4.2 |
| .GSM | Graphic Description Language File | 4.2 |
| .DB1 | Tekla Structures Model File | 4.2 |
| .EDF | Edificius Project | 4.2 |
| .RTD | Robot Structural Analysis Design File | 4.2 |
| .LCF | ArchiCAD Library Container File | 4.2 |
| .MC9 | Mastercam 9 Geometry File | 4.2 |
| .DSNX | RoadEng Location Design Document | 4.2 |
| .PSV | Pipe System Viewer File | 4.1 |
| .CAD | BobCAD-CAM File | 4.1 |
| .CATPRODUCT | CATIA V5 Assembly File | 4.1 |
| .JOB | MetaCAM Nest Job File | 4.1 |
| .GCODE | G-Code 3D Printer File | 4.0 |
| .AFD | Alphacam Flame Drawing | 4.0 |
| .JVSG | Video Surveillance Project | 4.0 |
| .DRA | Dolphin PartMaster Drawing File | 4.0 |
| .3DL | Sierra LandDesigner 3D File | 4.0 |
| .IDE | Inventor iFeature | 4.0 |
| .LIN | AutoCAD Linetype File | 4.0 |
| .MODEL | CATIA 3D Model | 4.0 |
| .ASY | LTspice Symbol File | 4.0 |
| .PC7 | PowerCADD 7 Drawing File | 4.0 |
| .DWT | AutoCAD Drawing Template | 4.0 |
| .ADI | AutoCAD Device-Independent Binary Plotter File | 4.0 |
| .CYP | Home Design Project | 4.0 |
| .DC3 | DesignCAD 3D ASCII Drawing | 4.0 |
| .LI3D | Live Interior 3D Document | 4.0 |
| .MTO | FastCAM MTO Text File | 4.0 |
| .CAD | Autodesk QuickCAD File | 4.0 |
| .RSG | RaySupreme Graph | 4.0 |
| .FPC | FreePCB Printed Circuit Board Layout | 4.0 |
| .CIB | Luminaire Data File | 4.0 |
| .FCSTD1 | FreeCAD Backup Document | 4.0 |
| .MS14 | Multisim 14 Circuit Design File | 4.0 |
| .GDS | Graphic Data System File | 4.0 |
| .NC | DSTV Numerical Control File | 4.0 |
| .123DX | 123D Design Model File | 4.0 |
| .PSS | AutoCAD Plot Stamp Settings File | 4.0 |
| .SAT | ACIS SAT 3D Model | 3.9 |
| .FCW | FastCAD Windows Drawing | 3.9 |
| .DES | Pro/DESKTOP CAD File | 3.9 |
| .SKF | AutoSketch Drawing | 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 |
| .TERX | RoadEng Terrain Design Document | 3.8 |
| .VET | Lectra Cutter's Must File | 3.8 |
| .NWF | Navisworks File Set | 3.8 |
| .EDN | EDIF Implementation Netlist File | 3.8 |
| .PWT | AutoCAD Publish To Web Template | 3.8 |
| .JVSGZ | Compressed Video Surveillance Project | 3.8 |
| .DST | AutoCAD Sheet Set | 3.8 |
| .DSN | OrCAD Design File | 3.8 |
| .SPT | SpeedTree Tree Data File | 3.8 |
| .CGR | CATIA Graphical Representation File | 3.8 |
| .ICD | IronCAD 2D Drawing File | 3.8 |
| .NC | Mastercam Numerical Control File | 3.8 |
| .PLN | ArchiCAD Project File | 3.8 |
| .BLK | AutoCAD Block Template File | 3.8 |
| .FZP | Fritzing XML Part Description | 3.8 |
| .DRU | EAGLE Design Rules | 3.8 |
| .DC2 | DesignCAD 2D ASCII Drawing | 3.8 |
| .BCD | RealView Debugger Board Chip Definition File | 3.8 |
| .PHJ | PhCNC Project File | 3.8 |
| .CF2 | Common File Format File | 3.8 |
| .123D | Autodesk 123D Drawing | 3.7 |
| .IGS | IGES Drawing | 3.7 |
| .SLDPRT | SolidWorks Part | 3.7 |
| .ISO | Arbortext IsoDraw Document | 3.7 |
| .STL | Stereolithography File | 3.7 |
| .MP11 | Multisim 11 Project File | 3.7 |
| .CFF | Common File Format | 3.7 |
| .MP10 | Multisim 10 Project File | 3.7 |
| .DC1 | DevCad Document | 3.7 |
| .ISOZ | Compressed Arbortext IsoDraw Illustration | 3.7 |
| .DFX | Drafix CAD File | 3.7 |
| .IDV | Inventor Design View | 3.7 |
| .PLA | ArchiCAD Project Archive | 3.7 |
| .MSM | Multisim Circuit Design File | 3.7 |
| .DWS | AutoCAD Drawing Standards File | 3.7 |
| .ASM | Solid Edge Assembly File | 3.7 |
| .DGN | MicroStation Design File | 3.6 |
| .JAM | Jam STAPL File | 3.6 |
| .PRG | PC-DMIS Part Program File | 3.6 |
| .MIN | Okuma CNC Program File | 3.6 |
| .EASM | eDrawings Assembly File | 3.6 |
| .MP7 | Multisim 7 Project File | 3.6 |
| .STP | STEP 3D CAD File | 3.6 |
| .BMF | FloorPlan File | 3.6 |
| .FZ | Fritzing Project File | 3.6 |
| .RSM | RouterSim Network Visualizer File | 3.6 |
| .SCH | gEDA Schematic File | 3.6 |
| .FMZ | Form•Z Project File | 3.6 |
| .RIG | vRigger Design File | 3.6 |
| .BDL | CoCreate Bundle File | 3.6 |
| .ICS | IronCAD 3D Scene | 3.6 |
| .ART | ArtCAM Model | 3.6 |
| .CZD | CAD Zone Drawing | 3.6 |
| .IF | Procedimientos-Uno IFWin Project File | 3.6 |
| .SVD | SolidView Design File | 3.6 |
| .PRT | CADKEY Part File | 3.6 |
| .DXX | AutoCAD Drawing Interchange Attribute File | 3.6 |
| .X_B | Parasolid Model Part File | 3.6 |
| .VWX | Vectorworks Design File | 3.6 |
| .SHX | AutoCAD Compiled Shape File | 3.6 |
| .CDW | KOMPAS Document | 3.5 |
| .SCH | EAGLE Schematics File | 3.5 |
| .PRT | Creo Parametric Part | 3.5 |
| .DWG | AutoCAD Drawing | 3.5 |
| .GXC | General CADD Pro Component | 3.5 |
| .FZZ | Fritzing Shareable Project File | 3.5 |
| .LIBPKG | Altium Designer Integrated Library Package | 3.5 |
| .LDR | LDraw Model File | 3.5 |
| .DXE | AutoCAD Data Extraction Template | 3.5 |
| .CIRCUIT | KTechlab Circuit Design File | 3.5 |
| .CAM | FastCAM CAM File | 3.5 |
| .CYP | Home Designer Pro Project File | 3.5 |
| .WDF | Wintech Drawing File | 3.5 |
| .EZD | EzCad2 Laser Engraving Design | 3.5 |
| .ACT | Alma CAD/CAM Document | 3.5 |
| .HSC | Aspen HYSYS Simulation File | 3.5 |
| .SAB | ACIS SAB Model | 3.5 |
| .123 | PCB123 Circuit Board Design | 3.5 |
| .LTL | Luminaire Data File | 3.5 |
| .MODFEM | Femap Model | 3.5 |
| .GXM | General CADD Pro Macro File | 3.5 |
| .ANY | AnyRail Layout Plan | 3.5 |
| .JBC | Jam STAPL Byte-Code File | 3.5 |
| .UNT | AutoCAD Unit Definition File | 3.5 |
| .DRW | Personal Designer Drawing File | 3.5 |
| .CMP | Solid Edge Wire Harness File | 3.5 |
| .STEP | STEP 3D Model | 3.5 |
| .DXF | Drawing Exchange Format File | 3.5 |
| .ASC | LTspice Circuit Schematic File | 3.5 |
| .MCD | MiniCAD 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 |
| .PSF | AutoCAD PostScript Patterns File | 3.4 |
| .NC1 | Mastercam Numerical Control File | 3.4 |
| .TAK | TAK 2000 Thermal Model File | 3.4 |
| .TSF | Strater Template File | 3.4 |
| .CDL | CADKEY Wireframe Design File | 3.4 |
| .BPM | Bizagi Process Modeler | 3.4 |
| .BBCD | BobCAD-CAM Document | 3.4 |
| .FCSTD | FreeCAD Document | 3.4 |
| .CATDRAWING | CATIA V5 Drawing | 3.4 |
| .EWB | Electronics Workbench Circuit Design File | 3.4 |
| .TCD | TurboCAD Mac Deluxe Drawing | 3.4 |
| .CNC | PartMaster CNC File | 3.4 |
| .IDW | Inventor Drawing | 3.4 |
| .LDT | Eulumdat Formatted Luminaire Data File | 3.4 |
| .DRW | ANVIL Drawing File | 3.3 |
| .RED | CADViewer Redline Markup File | 3.3 |
| .ELD | Eulumdat Formatted Luminaire Data File | 3.3 |
| .EZP | AutoCAD Ecscad Project Backup File | 3.3 |
| .ULD | Unified Luminaire Data File | 3.3 |
| .LIZD | Live Interior 3D Compressed Document | 3.3 |
| .XBF | XCAF Binary 3D Model | 3.3 |
| .XISE | Xilinx ISE Project File | 3.3 |
| .FNC | QuickCAM 3D CNC File | 3.3 |
| .TCM | TurboCAD Mac Drawing | 3.3 |
| .G3D | GOM 3D File | 3.3 |
| .IPT | Inventor Part | 3.3 |
| .ARD | ArtiosCAD Workspace File | 3.3 |
| .NGC | Xilinx Generated Netlist File | 3.3 |
| .OPJ | OrCAD Project File | 3.3 |
| .CAM | Gerber CAM Job File | 3.3 |
| .SLDDRW | SolidWorks Drawing | 3.3 |
| .DLX | DIALux Document | 3.3 |
| .WDP | AutoCAD Electrical Project File | 3.3 |
| .IAM | Inventor Assembly | 3.3 |
| .A2L | ASAP2 ECU Description File | 3.3 |
| .BIT | Xilinx Bitstream File | 3.3 |
| .123C | Autodesk 123C Drawing | 3.3 |
| .OLB | OrCAD Symbol Library File | 3.3 |
| .DC | DesignCAD Design File | 3.3 |
| .IPN | Inventor Presentation | 3.3 |
| .CNC | CNC Machine Tool Path | 3.2 |
| .DRWDOT | SolidWorks Drawing Template | 3.2 |
| .DGK | Delcam 3D Model File | 3.2 |
| .GCD | Generic CADD Drawing File | 3.2 |
| .SEW | Home Embroidery Format | 3.2 |
| .HSF | HOOPS Stream Format File | 3.2 |
| .BXL | Accelerated Designs PCB Library File | 3.2 |
| .DRG | AllyCAD Drawing File | 3.2 |
| .TSC | TINA Design File | 3.2 |
| .2D | VersaCAD 2D Drawing 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 |
| .BRD | Cadence Allegro PCB Design | 3.1 |
| .RDF | Relux Project File | 3.1 |
| .MS11 | Multisim 11 Circuit Design File | 3.1 |
| .DCD | DesignCAD Drawing | 3.1 |
| .DFT | Solid Edge Draft Document | 3.1 |
| .BRD | KiCad PCB Design File | 3.1 |
| .XNC | Exchange NC File | 3.0 |
| .HUS | Husqvarna Embroidery File | 3.0 |
| .NPL | Xilinx ISE 5-6 Project File | 3.0 |
| .DGB | FlashCAD Drawing Database | 3.0 |
| .EQN | GAL Equation File | 3.0 |
| .IFCXML | Industry Foundation Classes XML File | 3.0 |
| .MS12 | Multisim 12 Circuit Design File | 3.0 |
| .PC6 | PowerCADD 6 Drawing File | 3.0 |
| .FZBZ | Fritzing Bundled Bin File | 3.0 |
| .SCDOC | SpaceClaim Document | 3.0 |
| .PM3 | Crouzet Logic Software M3 File | 3.0 |
| .FPD | Front Panel Designer Project | 3.0 |
| .LIA | P-CAD ASCII Library file | 3.0 |
| .TCD | Technobox CAD Drawing | 3.0 |
| .FLX | FelixCAD Drawing | 3.0 |
| .BREP | BRep 3D Model File | 3.0 |
| .3W | XYZprinting Sliced Model File | 3.0 |
| .GX | FlashForge 3D Printing File | 3.0 |
| .BPMC | Bizagi Process Modeler Collaboration | 3.0 |
| .IC3D | IC3D Scene File | 3.0 |
| .RCM | Autodesk Reality Capture Mesh | 3.0 |
| .SMB | Autodesk Shape Manager Binary File | 3.0 |
| .SMT | Autodesk Shape Manager Text File | 3.0 |
| .PRJPCB | Altium Designer PCB Project | 3.0 |
| .EASMX | eDrawings Assembly XPS File | 3.0 |
| .ADT | AutoCAD Audit Log | 3.0 |
| .T3001 | TARGET 3001! Circuit Design Project File | 3.0 |
| .NEU | Pro/ENGINEER Neutral File | 3.0 |
| .ASMDOT | SolidWorks Assembly Template | 3.0 |
| .EWD | EasyWOOD Design File | 3.0 |
| .BIMX | BIM Explorer File | 3.0 |
| .PRTDOT | SolidWorks Part Template | 3.0 |
| .TGI | TowGeom Input File | 3.0 |
| .G | FlashForge G-Code File | 3.0 |
| .TC3 | TurboCAD 2D/3D Mac Drawing | 3.0 |
| .MP13 | Multisim 13 Project | 3.0 |
| .TOPVIW | TopSolid'Viewer Document | 3.0 |
| .FAN | Form•Z Animation File | 3.0 |
| .IPF | iMPACT Project File | 3.0 |
| .EPRT | eDrawings File | 3.0 |
| .TC2 | TurboCAD 2D Mac Drawing | 3.0 |
| .MMG | Model Master 3 Axis Flat File | 3.0 |
| .MFP | Markforged Print | 3.0 |
| .GINSPECT_PRJ | GOM Inspect Project File | 3.0 |
| .SZA | HiCAD Drawing File | 3.0 |
| .NWD | Navisworks Document | 3.0 |
| .X_T | Parasolid Model Part File | 3.0 |
| .EXB | CAXA Draft | 2.9 |
| .LAY6 | Sprint Layout 6 PCB Layout File | 2.9 |
| .CDDX | Circuit Diagram Document | 2.9 |
| .IPJ | Inventor Project | 2.9 |
| .CRV | VCarve Pro Design File | 2.9 |
| .NWC | Navisworks Cache File | 2.9 |
| .VND | Type3 Design File | 2.8 |
| .PRO | KiCad Project | 2.8 |
| .LYR | bestIMAGE Design File | 2.8 |
| .MP14 | Multisim 14 Project | 2.8 |
| .PIPE | PIPE-FLO Project File | 2.8 |
| .RCD | LEGO MINDSTORMS Recording File | 2.8 |
| .ATT | Alphacam Lathe Tool File | 2.8 |
| .GXD | General CADD Pro Drawing | 2.8 |
| .TCW | TurboCAD Drawing File | 2.7 |
| .TBP | Tekla BIMsight Project | 2.7 |
| .PSU | PSU Designer Document | 2.7 |
| .VTF | 3DESIGN CAD File | 2.7 |
| .TCP | TurboCAD Mac Pro Drawing | 2.7 |
| .MDL | Lectra Modaris Clothing Design File | 2.7 |
| .MVS | Microchip Verification Specification File | 2.7 |
| .KIT | 2020 Design Live File | 2.7 |
| .NGD | Xilinx Netlist File | 2.6 |
| .RML | Redline Markup Language File | 2.6 |
| .LYC | bestIMAGE Compressed Design File | 2.6 |
| .PCS | Pfaff Embroidery File | 2.5 |
| .EDRW | SolidWorks eDrawings File | 2.5 |
| .DSNWRK | Altium Designer Workspace File | 2.5 |
| .SCH | KiCad Schematic File | 2.5 |
| .TOPPRJ | TopSolid Project | 2.4 |
| .DRA | OrCAD Drawing File | 2.3 |
| .3DC | RoboCell Cell Setup File | 2.3 |
| .RS | RapidSketch Document | 2.3 |
| .CND | Melco Condensed Embroidery File | 2.3 |
| .ISE | Xilinx ISE Project | 2.3 |
| .SYM | gEDA Symbol File | 2.3 |
| .DBQ | AutoCAD Query Set | 2.3 |
| .MP8 | Multisim 8 Project | 2.3 |
| .TOP | TopSolid Design Document | 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 |
| .SMG | SolidWorks Composer File | 2.1 |
| .BSW | StruWalker 3D Model | 2.1 |
| .FZM | Fritzing Module File | 2.0 |
| .AD_PRT | Alibre Design Part | 2.0 |
| .PBB | Protobot Beta Project | 2.0 |
| .QPM | Quick Pallet Maker Input Data | 2.0 |
| .PWD | Solid Edge Weldment Document | 2.0 |
| .TCX | TurboCAD 3D Model Text File | 2.0 |
| .SST | Artec Studio Project | 2.0 |
| .EZC | AutoCAD Ecscad Components Backup File | 2.0 |
| .FPP | Front Panel Project | 2.0 |
| .CYG | Home Design Object | 2.0 |
| .SCH | ExpressSCH Schematics File | 2.0 |
| .GXH | General CADD Pro Hatch Pattern File | 2.0 |
| .FM | FeatureCAM Part | 2.0 |
| .BSWX | BIMReview 3D Model | 2.0 |
| .RCV | RoofCon Viewer Project File | 2.0 |
| .MS7 | Multisim 7 Circuit Design File | 2.0 |
| .MS9 | Multisim 9 Circuit Design File | 2.0 |
| .PRJSCR | Altium Designer Script Project | 2.0 |
| .MP9 | Multisim 9 Project File | 2.0 |
| .PIPD | PIPE-FLO Demo Project 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 |
| .PRJMBD | Altium Designer Multi-board Project | 2.0 |
| .L3B | LEGO 3D Model File | 2.0 |
| .BPZ | Easy Blue Print Symbol Library | 1.8 |
| .MOD | Femap Model | 1.7 |
| .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 |
| .CEL | MicroStation Cell Library | 1.3 |
| .CMP | Generic CADD Component File | 1.0 |
| .FCD | FastCAD DOS Drawing | 1.0 |