List of Cad file extensions

There are many different cad file extensions and cad file types used with computers, and you'll find an entire list of cad file extensions and types on our computer files and file extensions page. It is impossible to remember all file extensions and their associated software programs.

Below is the list of cad file extensions, broken into categories by sort of files along with the developer and available 100% free online cad file tools and apps.



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