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 |
|---|---|---|
| .BAK | AutoCAD Drawing Backup | 4.7 |
| .CIR | Micro-Cap Schematic | 4.5 |
| .AXM | FormIt Sketch | 4.5 |
| .G | FlashForge G-Code File | 4.5 |
| .BDC | West Point Bridge Designer Design File | 4.4 |
| .PSM | Solid Edge Sheet Metal File | 4.4 |
| .IBA | Lectra Clothing Design Pieces File | 4.4 |
| .SMB | Autodesk Shape Manager Binary File | 4.3 |
| .EPF | EAGLE Project | 4.3 |
| .DLV | CATIA 4 Export File | 4.3 |
| .SIM | SimLab Composer Scene | 4.3 |
| .DSNX | RoadEng Location Design Document | 4.3 |
| .CPA | CADSTAR PCB Archive File | 4.3 |
| .AFS | STAAD.foundation Project File | 4.3 |
| .FCSTD1 | FreeCAD Backup Document | 4.3 |
| .OPT | Opterecenja File | 4.3 |
| .MP12 | Multisim 12 Project | 4.3 |
| .MCX | MICRO CADAM-X/6000 Model Data File | 4.3 |
| .TCT | TurboCAD Drawing Template | 4.3 |
| .GSM | Graphic Description Language File | 4.2 |
| .DB1 | Tekla Structures Model File | 4.2 |
| .EDF | Edificius Project | 4.2 |
| .FPC | FreePCB Printed Circuit Board Layout | 4.2 |
| .JVSG | Video Surveillance Project | 4.2 |
| .MC9 | Mastercam 9 Geometry File | 4.2 |
| .PSV | Pipe System Viewer File | 4.2 |
| .RTD | Robot Structural Analysis Design File | 4.2 |
| .LCF | Archicad Library Container File | 4.2 |
| .TERX | RoadEng Terrain Design Document | 4.1 |
| .MS14 | Multisim 14 Circuit Design File | 4.1 |
| .CAD | BobCAD-CAM File | 4.1 |
| .CATPRODUCT | CATIA V5 Assembly File | 4.1 |
| .JOB | MetaCAM Nest Job File | 4.1 |
| .MODEL | CATIA 3D Model | 4.0 |
| .GCODE | G-Code 3D Printer File | 4.0 |
| .IDE | Inventor iFeature | 4.0 |
| .CAD | Autodesk QuickCAD File | 4.0 |
| .ADI | AutoCAD Device-Independent Binary Plotter File | 4.0 |
| .DC3 | DesignCAD 3D ASCII Drawing | 4.0 |
| .CBDDLP | Chitubox Sliced 3D Model | 4.0 |
| .PC7 | PowerCADD 7 Drawing File | 4.0 |
| .AFD | Alphacam Flame Drawing | 4.0 |
| .JT | JT Open CAD File | 4.0 |
| .DWT | AutoCAD Drawing Template | 4.0 |
| .XV3 | Lattice XVL Geometry File | 4.0 |
| .ASY | LTspice Symbol File | 4.0 |
| .MTO | FastCAM MTO Text File | 4.0 |
| .FZP | Fritzing XML Part Description | 4.0 |
| .CIB | Luminaire Data File | 4.0 |
| .CTB | Chitubox Sliced 3D Model | 4.0 |
| .VET | Lectra Cutter's Must File | 4.0 |
| .CYP | Home Design Project | 4.0 |
| .NC | DSTV Numerical Control File | 4.0 |
| .LOGICLY | Logicly Circuit | 4.0 |
| .RSG | RaySupreme Graph | 4.0 |
| .3DL | Sierra LandDesigner 3D File | 4.0 |
| .LI3D | Live Interior 3D Document | 4.0 |
| .MSM | Multisim Circuit Design File | 4.0 |
| .PAT | AutoCAD Hatch Pattern File | 4.0 |
| .123DX | 123D Design Model File | 3.9 |
| .ICD | IronCAD 2D Drawing File | 3.9 |
| .DES | Pro/DESKTOP CAD File | 3.9 |
| .SAT | ACIS SAT 3D Model | 3.9 |
| .FZB | Fritzing Bin File | 3.9 |
| .PSS | AutoCAD Plot Stamp Settings File | 3.9 |
| .SKF | AutoSketch Drawing | 3.9 |
| .MS13 | Multisim 13 Circuit Design File | 3.9 |
| .DST | AutoCAD Sheet Set | 3.8 |
| .GDS | Graphic Data System File | 3.8 |
| .JVSGZ | Compressed Video Surveillance Project | 3.8 |
| .MHS | Xilinx XPS Hardware Specification File | 3.8 |
| .EDN | EDIF Implementation Netlist File | 3.8 |
| .PWT | AutoCAD Publish To Web Template | 3.8 |
| .SPT | SpeedTree Tree Data File | 3.8 |
| .SLDASM | SolidWorks Assembly | 3.8 |
| .FCW | FastCAD Windows Drawing | 3.8 |
| .SLDPRT | SolidWorks Part | 3.8 |
| .BLK | AutoCAD Block Template File | 3.8 |
| .NWF | Navisworks File Set | 3.8 |
| .PHJ | PhCNC Project File | 3.8 |
| .CF2 | Common File Format File | 3.8 |
| .DC2 | DesignCAD 2D ASCII Drawing | 3.8 |
| .DRU | EAGLE Design Rules | 3.8 |
| .BCD | RealView Debugger Board Chip Definition File | 3.8 |
| .SCAD | OpenSCAD Script | 3.8 |
| .PLN | Archicad Solo Project | 3.7 |
| .NC | Mastercam Numerical Control File | 3.7 |
| .IGS | IGES Drawing | 3.7 |
| .LIN | AutoCAD Linetype File | 3.7 |
| .SCH | gEDA Schematic File | 3.7 |
| .123D | Autodesk 123D Drawing | 3.7 |
| .DSN | OrCAD Design File | 3.7 |
| .MP11 | Multisim 11 Project File | 3.7 |
| .CFF | Common File Format | 3.7 |
| .STL | Stereolithography File | 3.7 |
| .MIN | Okuma CNC Program File | 3.7 |
| .MP10 | Multisim 10 Project File | 3.7 |
| .DWFX | Design Web Format XPS File | 3.7 |
| .ISO | Arbortext IsoDraw Document | 3.7 |
| .DC1 | DevCad Document | 3.7 |
| .DWS | AutoCAD Drawing Standards File | 3.7 |
| .MDE | Archicad Education Module | 3.7 |
| .IDV | Inventor Design View | 3.7 |
| .ISOZ | Compressed Arbortext IsoDraw Illustration | 3.7 |
| .XNC | Exchange NC File | 3.7 |
| .TC2 | TurboCAD 2D Mac Drawing | 3.7 |
| .PLA | Archicad Project Archive | 3.7 |
| .FZBZ | Fritzing Bundled Bin File | 3.7 |
| .DGN | MicroStation Design | 3.6 |
| .IAM | Inventor Assembly | 3.6 |
| .CDW | KOMPAS Document | 3.6 |
| .STP | STEP 3D CAD File | 3.6 |
| .LDR | LDraw Model File | 3.6 |
| .SHX | AutoCAD Compiled Shape File | 3.6 |
| .X_B | Parasolid Model Part File | 3.6 |
| .FZ | Fritzing Project File | 3.6 |
| .BMF | FloorPlan File | 3.6 |
| .RSM | RouterSim Network Visualizer File | 3.6 |
| .VWX | Vectorworks Design | 3.6 |
| .RIG | vRigger Design File | 3.6 |
| .PLP | Archicad Teamwork Project | 3.6 |
| .FMZ | Form•Z Project File | 3.6 |
| .BDL | CoCreate Bundle File | 3.6 |
| .FZZ | Fritzing Shareable Project File | 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 |
| .PRT | Creo Parametric Part | 3.5 |
| .ART | ArtCAM Model | 3.5 |
| .DWG | AutoCAD Drawing | 3.5 |
| .CATPART | CATIA V5 Part File | 3.5 |
| .GXM | General CADD Pro Macro File | 3.5 |
| .123 | PCB123 Circuit Board Design | 3.5 |
| .GXC | General CADD Pro Component | 3.5 |
| .CIRCUIT | KTechlab Circuit Design File | 3.5 |
| .LTL | Luminaire Data File | 3.5 |
| .UNT | AutoCAD Unit Definition File | 3.5 |
| .ACT | Alma CAD/CAM Document | 3.5 |
| .HSC | Aspen HYSYS Simulation File | 3.5 |
| .CAM | FastCAM CAM File | 3.5 |
| .BBCD | BobCAD-CAM Document | 3.5 |
| .LIBPKG | Altium Designer Integrated Library Package | 3.5 |
| .CYP | Home Designer Pro Project File | 3.5 |
| .TSF | Strater Template File | 3.5 |
| .EZD | EzCad2 Laser Engraving Design | 3.5 |
| .PRJPCBSTRUCTURE | Altium Designer PCB Project Structure | 3.5 |
| .ANY | AnyRail Layout Plan | 3.5 |
| .DFX | Drafix CAD File | 3.5 |
| .MODFEM | Femap Model | 3.5 |
| .SAB | ACIS SAB Model | 3.5 |
| .PLUSH | Plushify Project | 3.5 |
| .ASC | LTspice Circuit Schematic File | 3.5 |
| .STEP | STEP 3D Model | 3.5 |
| .DXF | Drawing Exchange Format File | 3.5 |
| .MCD | MiniCAD Design File | 3.5 |
| .SCH | EAGLE Schematics File | 3.4 |
| .EASM | eDrawings Assembly File | 3.4 |
| .PRT | Unigraphics Part File | 3.4 |
| .RRA | vRigger Rigging Gear File | 3.4 |
| .TAK | TAK 2000 Thermal Model File | 3.4 |
| .JBC | Jam STAPL Byte-Code File | 3.4 |
| .MP7 | Multisim 7 Project File | 3.4 |
| .NC1 | Mastercam Numerical Control File | 3.4 |
| .PSF | AutoCAD PostScript Patterns File | 3.4 |
| .CDL | CADKEY Wireframe Design File | 3.4 |
| .JAM | Jam STAPL File | 3.4 |
| .CGR | CATIA Graphical Representation File | 3.4 |
| .G | BRL-CAD Geometry File | 3.4 |
| .PRG | PC-DMIS Part Program File | 3.4 |
| .ICS | IronCAD 3D Scene | 3.4 |
| .EWB | Electronics Workbench Circuit Design File | 3.4 |
| .CATDRAWING | CATIA V5 Drawing | 3.4 |
| .FNC | QuickCAM 3D CNC File | 3.4 |
| .IPT | Inventor Part | 3.4 |
| .TCD | TurboCAD Mac Deluxe Drawing | 3.4 |
| .XISE | Xilinx ISE Project File | 3.4 |
| .DGK | Delcam 3D Model File | 3.4 |
| .DXX | AutoCAD Drawing Interchange Attribute File | 3.4 |
| .FCSTD | FreeCAD Document | 3.4 |
| .WDP | AutoCAD Electrical Project File | 3.4 |
| .DXE | AutoCAD Data Extraction Template | 3.4 |
| .RED | CADViewer Redline Markup File | 3.3 |
| .EZP | AutoCAD Ecscad Project Backup File | 3.3 |
| .TCM | TurboCAD Mac Drawing | 3.3 |
| .ULD | Unified Luminaire Data File | 3.3 |
| .ELD | Eulumdat Formatted Luminaire Data File | 3.3 |
| .DSNWRK | Altium Designer Workspace File | 3.3 |
| .XBF | XCAF Binary 3D Model | 3.3 |
| .LIZD | Live Interior 3D Compressed Document | 3.3 |
| .G3D | GOM 3D File | 3.3 |
| .BPM | Bizagi Process Modeler | 3.3 |
| .ARD | ArtiosCAD Workspace File | 3.3 |
| .OPJ | OrCAD Project File | 3.3 |
| .NGC | Xilinx Generated Netlist File | 3.3 |
| .DLX | DIALux Document | 3.3 |
| .TOPVIW | TopSolid'Viewer Document | 3.3 |
| .SEW | Home Embroidery Format | 3.3 |
| .IDW | Inventor Drawing | 3.3 |
| .LDT | Eulumdat Formatted Luminaire Data File | 3.3 |
| .CAM | Gerber CAM Job File | 3.3 |
| .IPN | Inventor Presentation | 3.3 |
| .123C | Autodesk 123C Drawing | 3.3 |
| .WDF | Wintech Drawing File | 3.3 |
| .SLDDRW | SolidWorks Drawing | 3.3 |
| .A2L | ASAP2 ECU Description File | 3.3 |
| .DC | DesignCAD Design File | 3.3 |
| .CNC | CNC Machine Tool Path | 3.2 |
| .GX | FlashForge 3D Printing File | 3.2 |
| .HSF | HOOPS Stream Format File | 3.2 |
| .GXD | General CADD Pro Drawing | 3.2 |
| .DRWDOT | SolidWorks Drawing Template | 3.2 |
| .BXL | Accelerated Designs PCB Library File | 3.2 |
| .GCD | Generic CADD Drawing File | 3.2 |
| .DRG | AllyCAD Drawing File | 3.2 |
| .TSC | TINA Design File | 3.2 |
| .MIN | MAX Interchange Notation File | 3.2 |
| .2D | VersaCAD 2D Drawing File | 3.2 |
| .PHO | Gerber Photoplot File | 3.2 |
| .BRD | KiCad PCB Design File | 3.2 |
| .GEO | TruTops Geometry File | 3.1 |
| .PRT | Solid Edge Part File | 3.1 |
| .LAY6 | Sprint Layout 6 PCB Layout File | 3.1 |
| .FPD | Front Panel Designer Project | 3.1 |
| .PRO | KiCad Project | 3.1 |
| .3W | XYZprinting Sliced Model File | 3.1 |
| .MS11 | Multisim 11 Circuit Design File | 3.1 |
| .BIT | Xilinx Bitstream File | 3.1 |
| .DFT | Solid Edge Draft Document | 3.1 |
| .CNC | PartMaster CNC File | 3.1 |
| .RDF | Relux Project File | 3.1 |
| .DCD | DesignCAD Drawing | 3.1 |
| .OLB | OrCAD Symbol Library File | 3.1 |
| .CDDX | Circuit Diagram Document | 3.0 |
| .IFCXML | Industry Foundation Classes XML File | 3.0 |
| .EQN | GAL Equation File | 3.0 |
| .BREP | BRep 3D Model File | 3.0 |
| .FZM | Fritzing Module File | 3.0 |
| .MS12 | Multisim 12 Circuit Design File | 3.0 |
| .PM3 | Crouzet Logic Software M3 File | 3.0 |
| .NPL | Xilinx ISE 5-6 Project File | 3.0 |
| .DRW | Personal Designer Drawing File | 3.0 |
| .LIA | P-CAD ASCII Library file | 3.0 |
| .BPMC | Bizagi Process Modeler Collaboration | 3.0 |
| .EPRT | eDrawings File | 3.0 |
| .X_T | Parasolid Model Part File | 3.0 |
| .PRTDOT | SolidWorks Part Template | 3.0 |
| .ASMDOT | SolidWorks Assembly Template | 3.0 |
| .EASMX | eDrawings Assembly XPS File | 3.0 |
| .DRA | Dolphin PartMaster Drawing File | 3.0 |
| .SMT | Autodesk Shape Manager Text File | 3.0 |
| .TCD | Technobox CAD Drawing | 3.0 |
| .RCM | Autodesk Reality Capture Mesh | 3.0 |
| .SZA | HiCAD Drawing File | 3.0 |
| .MMG | Model Master 3 Axis Flat File | 3.0 |
| .MP13 | Multisim 13 Project | 3.0 |
| .MFP | Markforged Print | 3.0 |
| .BIMX | BIM Explorer File | 3.0 |
| .SYM | gEDA Symbol File | 3.0 |
| .IC3D | IC3D Scene File | 3.0 |
| .EWD | EasyWOOD Design File | 3.0 |
| .GINSPECT_PRJ | GOM Inspect Project File | 3.0 |
| .DGB | FlashCAD Drawing Database | 3.0 |
| .PC6 | PowerCADD 6 Drawing File | 3.0 |
| .FAN | Form•Z Animation File | 3.0 |
| .BRD | Cadence Allegro PCB Design | 3.0 |
| .TGI | TowGeom Input File | 3.0 |
| .ASM | Solid Edge Assembly File | 3.0 |
| .LOGICLYLIB | Logicly Integrated Circuit Library | 3.0 |
| .CHITUBOX | Chitubox Project | 3.0 |
| .NEU | Pro/ENGINEER Neutral File | 3.0 |
| .TC3 | TurboCAD 2D/3D Mac Drawing | 3.0 |
| .SCDOC | SpaceClaim Document | 3.0 |
| .HUS | Husqvarna Embroidery File | 3.0 |
| .IPF | iMPACT Project File | 3.0 |
| .T3001 | TARGET 3001! Circuit Design Project File | 3.0 |
| .ADT | AutoCAD Audit Log | 3.0 |
| .SCHDOC | Altium Designer Schematic Document | 3.0 |
| .LFVIEW | Leapfrog Viewer Scene | 3.0 |
| .VDS | Visual Design Stream | 3.0 |
| .WBT | Webots World | 3.0 |
| .NWD | Navisworks Document | 3.0 |
| .EXB | CAXA Draft | 2.9 |
| .IPJ | Inventor Project | 2.9 |
| .CRV | VCarve Pro Design File | 2.9 |
| .SCH | KiCad Schematic File | 2.9 |
| .NWC | Navisworks Cache File | 2.9 |
| .VND | Type3 Design File | 2.8 |
| .MP14 | Multisim 14 Project | 2.8 |
| .PIPE | PIPE-FLO Project File | 2.8 |
| .LYR | bestIMAGE Design File | 2.8 |
| .CND | Melco Condensed Embroidery File | 2.8 |
| .TCW | TurboCAD Drawing File | 2.8 |
| .RCD | LEGO MINDSTORMS Recording File | 2.8 |
| .PSU | PSU Designer Document | 2.7 |
| .TBP | Tekla BIMsight Project | 2.7 |
| .FLX | FelixCAD Drawing | 2.7 |
| .VTF | 3DESIGN CAD File | 2.7 |
| .MDL | Lectra Modaris Clothing Design File | 2.7 |
| .MVS | Microchip Verification Specification File | 2.7 |
| .TCP | TurboCAD Mac Pro Drawing | 2.7 |
| .CMP | Solid Edge Wire Harness File | 2.7 |
| .NGD | Xilinx Netlist File | 2.6 |
| .LYC | bestIMAGE Compressed Design File | 2.6 |
| .RML | Redline Markup Language File | 2.5 |
| .KIT | 2020 Design Live File | 2.5 |
| .TPL | Archicad Template | 2.5 |
| .PRJSCR | Altium Designer Script Project | 2.5 |
| .PLC | Archicad Teamwork Draft | 2.5 |
| .PCS | Pfaff Embroidery File | 2.5 |
| .TCX | TurboCAD 3D Model Text File | 2.5 |
| .EDRW | SolidWorks eDrawings File | 2.5 |
| .PRJPCB | Altium Designer PCB Project | 2.5 |
| .TOPPRJ | TopSolid Project | 2.4 |
| .ATT | Alphacam Lathe Tool File | 2.4 |
| .GXH | General CADD Pro Hatch Pattern File | 2.4 |
| .DRW | ANVIL Drawing File | 2.4 |
| .DVG | Graphic Works Vector Graphic | 2.4 |
| .DBQ | AutoCAD Query Set | 2.3 |
| .3DC | RoboCell Cell Setup File | 2.3 |
| .ISE | Xilinx ISE Project | 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 |
| .RS | RapidSketch Document | 2.1 |
| .GBX | Gerber PCB File | 2.1 |
| .BSW | StruWalker 3D Model | 2.1 |
| .SMG | SolidWorks Composer File | 2.1 |
| .PRJMBD | Altium Designer Multi-board Project | 2.0 |
| .IQP | IntelliQuilter Pattern | 2.0 |
| .PWD | Solid Edge Weldment Document | 2.0 |
| .DRA | OrCAD Drawing File | 2.0 |
| .QPM | Quick Pallet Maker Input Data | 2.0 |
| .FPP | Front Panel Project | 2.0 |
| .EZC | AutoCAD Ecscad Components Backup File | 2.0 |
| .MP9 | Multisim 9 Project File | 2.0 |
| .MS9 | Multisim 9 Circuit Design File | 2.0 |
| .MS7 | Multisim 7 Circuit Design File | 2.0 |
| .DXO | DesignXOver Speaker Circuit Design File | 2.0 |
| .PIPD | PIPE-FLO Demo Project File | 2.0 |
| .STA | Vectorworks Design Template | 2.0 |
| .FM | FeatureCAM Part | 2.0 |
| .L3B | LEGO 3D Model File | 2.0 |
| .RCV | RoofCon Viewer Project File | 2.0 |
| .CYG | Home Design Object | 2.0 |
| .AD_PRT | Alibre Design Part | 2.0 |
| .CKT | KeyCreator Design Template | 2.0 |
| .IDCL | Inventor Desktop Content Library File | 2.0 |
| .SCH | ExpressSCH Schematics File | 2.0 |
| .BBCDX | BobCAD-CAM Document | 2.0 |
| .PBB | Protobot Beta Project | 2.0 |
| .PPA | Archicad Teamwork Project Archive | 2.0 |
| .BSWX | BIMReview 3D Model | 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 |
| .SST | Artec Studio Project | 1.5 |
| .HCP | HydroCAD Project File | 1.4 |
| .UPF | Unified Power Format File | 1.3 |
| .CEL | MicroStation Cell Library | 1.2 |
| .MOD | Archicad Module | 1.2 |
| .CMP | Generic CADD Component File | 1.0 |
| .FCD | FastCAD DOS Drawing | 1.0 |
| .PCA | Archicad Teamwork Draft Archive | 1.0 |