| .3DA | Unknown Developer | File 3D | 3D Assembly File | ArtCAM | Autodesk, Inc. |
| .3DM | Redway3d and others | File 3D | Rhino 3D Model | Autodesk Fusion 360 | Autodesk, Inc. |
| .3DP | Futuremark Corporation | File di dati | 3DMark2011 SE Project File | Autodesk 123D Catch | Autodesk, Inc. |
| .AAS | Adobe Systems Incorporated | File di dati | Adobe Authorware Shocked Packet File | Autodesk Animator | Autodesk, Inc. |
| .ACB | Adobe Systems Incorporated | File di settaggi | Adobe Photoshop Color Book File | Autodesk AutoCAD | Autodesk, Inc. |
| .ADI | Active@ Data Recovery Software | File backup | Active@ Disk Image Backup File | Autodesk AutoCAD Ecscad | Autodesk, Inc. |
| .ADT | Swiftpage, Inc. | File di dati | ACT! Document Template | Autodesk AutoCAD Ecscad | Autodesk, Inc. |
| .AEF | Autodesk, Inc. | File di CAD | ELECTRICAL Designe | Autocad Electrical | Autodesk, Inc. |
| .AHP | Autodesk, Inc. | File di dati | AutoCAD Help Data | Autodesk AutoCAD | Autodesk, Inc. |
| .AMF | Autodesk, Inc. | File 3D | Additive Manufacturing File | Autodesk Meshmixer | Autodesk, Inc. |
| .ANIM | Autodesk, Inc. | File 3D | Maya Animation File | Autodesk Maya | Autodesk, Inc. |
| .APJ | The FreeBSD Community | File di dati | FreeBSD File | Autodesk AutoCAD | Autodesk, Inc. |
| .ARG | Autodesk, Inc. | File di settaggi | AutoCAD Profile | Autodesk AutoCAD | Autodesk, Inc. |
| .ART | Autodesk, Inc. | File di CAD | ArtCAM Model | ArtCAM | Autodesk, Inc. |
| .ARX | Autodesk, Inc. | File con plugin | AutoCAD Runtime Extension File | Autodesk AutoCAD | Autodesk, Inc. |
| .ASC | Symantec Corporation | File codificati | PGP (Pretty Good Privacy) ASCII Armored File | Autodesk 3ds Max | Autodesk, Inc. |
| .ASM | Open Source | File sviluppatore | Assembly Language Source Code File | Autodesk Fusion 360 | Autodesk, Inc. |
| .ATC | Autodesk, Inc. | File di settaggi | AutoCAD Tool Catalog File | Autodesk AutoCAD Civil 3D | Autodesk, Inc. |
| .AWS | Autodesk, Inc. | File di sistema | AutoCAD Work Space File | Autodesk AutoCAD Ecscad | Autodesk, Inc. |
| .AXD | Microsoft Corporation | File web | ASP.NET Web Handler File | Autodesk AutoCAD | Autodesk, Inc. |
| .BIO | IBM | File di sistema | BIOS File | Autodesk Mudbox 2017 | Autodesk, Inc. |
| .BIP | Unknown Developer | File 3D | Character Studio Biped File | Character Studio | Autodesk, Inc. |
| .BK1 | Autodesk, Inc. | File backup | Autodesk Backup File | Autodesk AutoCAD Ecscad | Autodesk, Inc. |
| .BLK | Autodesk, Inc. | File di CAD | AutoCAD Block Template File | Autodesk AutoCAD Ecscad | Autodesk, Inc. |
| .BMI | Autodesk, Inc. | File con plugin | 3D Studio Max Plugin | Autodesk 3ds Max | Autodesk, Inc. |
| .BPL | Autodesk, Inc. | File vari | AutoCAD Batch Plot File | Autodesk AutoCAD | Autodesk, Inc. |
| .BRD | Autodesk, Inc. | File di dati | EAGLE Circuit Board File | CadSoft EAGLE | Autodesk, Inc. |
| .CAL | Newera Software Technology, Inc. | File con immagini raster | CALS Raster File | Autodesk 3ds Max | Autodesk, Inc. |
| .CAM | Ucamco | File di CAD | Gerber CAM Job File | CadSoft EAGLE | Autodesk, Inc. |
| .CAS | Autodesk, Inc. | File di dati | Autodesk Cascade License File | AutoCAD Architecture | Autodesk, Inc. |
| .CATPART | Dassault Systèmes | File di CAD | CATIA V5 Part File | Autodesk Fusion 360 | Autodesk, Inc. |
| .CATPRODUCT | Dassault Systèmes | File di CAD | CATIA V5 Assembly File | Autodesk Fusion 360 | Autodesk, Inc. |
| .CDC | Autodesk, Inc. | File con immagini raster | AutoCAD DesignCenter Preview Cache File | Autodesk AutoCAD | Autodesk, Inc. |
| .CHR | Crytek | File 3D | CryENGINE Character File | Autodesk 3ds Max | Autodesk, Inc. |
| .CHX | Autodesk, Inc. | File di settaggi | AutoCAD Standards Check File | Autodesk AutoCAD Ecscad | Autodesk, Inc. |
| .CJB | Autodesk, Inc. | File compressi | Autodesk Cleaner XL Job | Autodesk Cleaner XL | Autodesk, Inc. |
| .CLT | Clarity Legal | File con layout di pagina | Clarity Legal Transcript File | Autodesk AutoCAD Civil 3D | Autodesk, Inc. |
| .COF | Microchip Technology Inc. | File eseguibili | MPLAB COFF File | Autodesk AutoCAD Civil 3D | Autodesk, Inc. |
| .COL | Open Source | File di dati | Bibexcel File | Autodesk Animator | Autodesk, Inc. |
| .CPY | Autodesk, Inc. | File 3D | 3ds Max Copy Track File | Autodesk 3ds Max | Autodesk, Inc. |
| .CSM | Autodesk, Inc. | File 3D | Character Studio Marker File | Character Studio | Autodesk, Inc. |
| .CTB | Autodesk, Inc. | File di settaggi | AutoCAD Color-Based Plot Style File | Autodesk AutoCAD | Autodesk, Inc. |
| .CUS | Autodesk, Inc. | File di settaggi | AutoCAD Custom Dictionary File | Autodesk AutoCAD | Autodesk, Inc. |
| .DAB | Epigon Media Technologies | File audio | Digital Audio Broadcasting Audio Data | Autodesk AutoCAD Civil 3D | Autodesk, Inc. |
| .DAE | Sony | File 3D | Digital Asset Exchange File | Autodesk Maya | Autodesk, Inc. |
| .DB3 | Dwayne Richard Hipp | File di database | SQLite Database File | AutoCAD Map 3D | Autodesk, Inc. |
| .DBX | Microsoft Corporation | File vari | Outlook Express E-mail Folder | Autodesk AutoCAD Ecscad | Autodesk, Inc. |
| .DCL | Autodesk, Inc. | File di settaggi | AutoCAD Dialog Definition File | Autodesk AutoCAD Ecscad | Autodesk, Inc. |
| .DCN | Autodesk, Inc. | File di settaggi | Autodesk Depth Slope Definition | Autodesk AutoCAD Civil 3D | Autodesk, Inc. |
| .DCT | Microsoft Corporation | File di dati | Dictionary File | Autodesk AutoCAD | Autodesk, Inc. |
| .DEI | Open Source | File di dati | Gerber Design Engineered Interface | Autodesk EAGLE | Autodesk, Inc. |
| .DFM | Open Source | File di testo | Pascal File | Autodesk AutoCAD Civil 3D | Autodesk, Inc. |
| .DFS | Open Source | File 3D | BrainSuite Surface File | Autodesk AutoCAD | Autodesk, Inc. |
| .DFX | Autodesk, Inc. | File di CAD | Drafix CAD File | Autodesk AutoCAD Ecscad | Autodesk, Inc. |
| .DGK | Autodesk, Inc. | File di CAD | Delcam 3D Model File | ArtCAM | Autodesk, Inc. |
| .DLC | JDownloader Team | File codificati | Download Link Container File | Autodesk 3ds Max | Autodesk, Inc. |
| .DLM | AKAMAI | File vari | Akamai Download Manager File | Autodesk 3ds Max | Autodesk, Inc. |
| .DLO | Autodesk, Inc. | File con plugin | 3ds Max Plug-in | Autodesk 3ds Max | Autodesk, Inc. |
| .DLU | Autodesk, Inc. | File con plugin | 3ds Max Utility Plug-in File | Autodesk 3ds Max | Autodesk, Inc. |
| .DRU | Autodesk, Inc. | File di CAD | EAGLE Design Rules File | Autodesk EAGLE | Autodesk, Inc. |
| .DRW | Corel | File con immagini vettoriali | DESIGNER Drawing | AutoCAD for Mac | Autodesk, Inc. |
| .DSD | Autodesk, Inc. | File di settaggi | AutoCAD Drawing Set Description File | Autodesk AutoCAD | Autodesk, Inc. |
| .DST | Autodesk, Inc. | File di CAD | AutoCAD Sheet Set File | Autodesk AutoCAD Ecscad | Autodesk, Inc. |
| .DVB | Autodesk, Inc. | File sviluppatore | AutoCAD VBA Project File | AutoCAD VBA module | Autodesk, Inc. |
| .DVP | Autodesk, Inc. | File di settaggi | AutoCAD Device Parameter File Format | Autodesk AutoCAD | Autodesk, Inc. |
| .DWF | Autodesk, Inc. | File 3D | Autodesk Design Web Format File | AutoCAD 360 | Autodesk, Inc. |
| .DWFX | Autodesk, Inc. | File di CAD | Design Web Format XPS File | Navisworks | Autodesk, Inc. |
| .DWG | Autodesk, Inc. | File di CAD | AutoCAD Drawing Database File | Autodesk Fusion 360 | Autodesk, Inc. |
| .DWS | Autodesk, Inc. | File di CAD | AutoCAD Drawing Standards File | Autodesk AutoCAD | Autodesk, Inc. |
| .DWZ | Corel | File di dati | DVD MovieFactory Project File | Autodesk AutoCAD | Autodesk, Inc. |
| .DXB | Autodesk, Inc. | File con immagini vettoriali | Drawing Exchange Binary | Autodesk AutoCAD | Autodesk, Inc. |
| .DXE | Autodesk, Inc. | File di CAD | AutoCAD Data Extraction Template | Autodesk AutoCAD | Autodesk, Inc. |
| .DXF | Autodesk, Inc. | File di CAD | Drawing Exchange Format | DWG TrueView | Autodesk, Inc. |
| .DXX | Autodesk, Inc. | File di CAD | AutoCAD Drawing Interchange Attribute File | Autodesk AutoCAD | Autodesk, Inc. |
| .EASM | Dassault Systèmes | File di CAD | eDrawings Assembly File | Autodesk Inventor | Autodesk, Inc. |
| .EIL | Cadsoft | File 3D | Eagle Library Intermediate Data | CadSoft EAGLE | Autodesk, Inc. |
| .EPF | Vero Software | File di dati | Edgecam Educational Part File | CadSoft EAGLE | Autodesk, Inc. |
| .ERR | Microsoft Corporation | File di testo | Error Log File | Autodesk AutoCAD | Autodesk, Inc. |
| .ESJ | Thermwood Corporation | File di CAD | eCabinet CAD File | Autodesk Fabrication CAMduct | Autodesk, Inc. |
| .EZC | Autodesk, Inc. | File di CAD | AutoCAD Ecscad Components Backup File | Autodesk AutoCAD Ecscad | Autodesk, Inc. |
| .EZP | Autodesk, Inc. | File di CAD | AutoCAD Ecscad Project Backup File | Autodesk AutoCAD Ecscad | Autodesk, Inc. |
| .F3D | Autodesk, Inc. | File 3D | Fusion 3D Design | Autodesk Fusion 360 | Autodesk, Inc. |
| .F3Z | Autodesk, Inc. | File 3D | Fusion 360 Distributed Design File | Autodesk Fusion 360 | Autodesk, Inc. |
| .FAS | Autodesk, Inc. | File eseguibili | Compiled Fast-Load AutoLISP File | Autodesk AutoCAD | Autodesk, Inc. |
| .FBK | Microsoft Corporation | File backup | Microsoft Dynamics NAV Backup File | Autodesk AutoCAD Civil 3D | Autodesk, Inc. |
| .FDC | Autodesk, Inc. | File di settaggi | AutoCAD Field Catalog File | Autodesk AutoCAD | Autodesk, Inc. |
| .FGM | Autodesk, Inc. | File di settaggi | 3ds Max Final Gather Map File | Autodesk 3ds Max | Autodesk, Inc. |
| .FIG | Open Source | File con immagini vettoriali | Xfig Drawing | Autodesk 3ds Max | Autodesk, Inc. |
| .FIS | 3AM Solutions | File grafici | Dynamite VSP Feature Interpretation Style | Viz | Autodesk, Inc. |
| .FMP | Dreamingsoft | File web | 123 Flash Menu Project | Autodesk AutoCAD | Autodesk, Inc. |
| .GBL | Ucamco | File di dati | Gerber Bottom Layer Data File | CadSoft EAGLE | Autodesk, Inc. |
| .GBP | Genie | File backup | Genie Timeline Backup Index File | Autodesk EAGLE | Autodesk, Inc. |
| .GFX | Autodesk, Inc. | File di giochi | GFx Scaleform File | Scaleform GFx | Autodesk, Inc. |
| .GML | Galdos Systems, Inc. | File di GIS | Geography Markup Language File | Autodesk EAGLE | Autodesk, Inc. |
| .GPI | Garmin | File di dati | Garmin Point Of Interest File | Autodesk EAGLE | Autodesk, Inc. |
| .GTO | Quicken | File di dati | Quicken Online Data File | Autodesk EAGLE | Autodesk, Inc. |
| .GTP | Ucamco | File di dati | Gerber Top Solder Paste Data File | CadSoft EAGLE | Autodesk, Inc. |
| .GTS | Ucamco | File di dati | Gerber Top Solder Mask Data File | Autodesk EAGLE | Autodesk, Inc. |
| .HDC | TCD Labs | File di dati | HD Tach Benchmark Results | Autodesk AutoCAD Civil 3D | Autodesk, Inc. |
| .HDI | Open Source | File con immagini disco | Hard Disk Image | Autodesk AutoCAD | Autodesk, Inc. |
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