| .000 | Microsoft Corporation | Diskbildefiler | Indexing Service Data File | Microsoft Windows | Microsoft Corporation |
| .3DO | Open Source | Diskbildefiler | FreeDO Phoenix ISO Image | FreeDO | Open Source |
| .5DK | IBM | Diskbildefiler | Saved SKF Format File | OS/2 | IBM |
| .AA | Audible | Diskbildefiler | Audible Audio Book File | Apple iTunes | Apple |
| .ADF | Cloanto Corporation | Diskbildefiler | Amiga Disk File | Amiga Forever | Cloanto Corporation |
| .ADZ | GNU Project | Diskbildefiler | Compressed Amiga Disk File | The Unarchiver | Dag Agren, Circlesoft |
| .AFD | Planit Solutions, Inc. | Diskbildefiler | Alphacam Flame Drawing | Planit Alphacam | Planit Solutions, Inc. |
| .AFF | Kingsoft | Diskbildefiler | Spellcheck Dictionary Description File | Kingsoft Writer | Kingsoft |
| .AFM | Adobe Systems Incorporated | Diskbildefiler | Adobe Font Metrics File | Adobe Creative Cloud | Adobe Systems Incorporated |
| .ASHDISC | Ashampoo | Diskbildefiler | Ashampoo Burning Studio Image | PowerISO | Power Software Ltd |
| .ATR | Atari Corporation | Diskbildefiler | Atari Disk Image | PC Xformer Classic | Emulators, Inc |
| .B00 | VSO Software | Diskbildefiler | Blindwrite Data | BlindWrite | VSO Software |
| .B01 | VSO Software | Diskbildefiler | Blindwrite Image Segment | BlindWrite | VSO Software |
| .B02 | VSO Software | Diskbildefiler | Blindwrite Image Segment | BlindWrite | VSO Software |
| .B5I | VSO Software | Diskbildefiler | BlindWrite 5 Disk Image | IsoBuster | Smart Projects |
| .B5T | VSO Software | Diskbildefiler | BlindWrite 5 Disc Track Information File | IsoBuster | Smart Projects |
| .B6I | VSO Software | Diskbildefiler | BlindWrite 6 Disc Image | BlindWrite | VSO Software |
| .B6T | VSO Software | Diskbildefiler | BlindWrite 6 Track Information File | BlindWrite | VSO Software |
| .BDF | Willowsoft Creek Software | Diskbildefiler | Backup Definition File | Backup Made Simple | Willowsoft Creek Software |
| .BDK | IBM | Diskbildefiler | OS/2 Floppy Disk Image | OS/2 | IBM |
| .BIF | MagicISO Inc. | Diskbildefiler | Boot Information File | MagicISO | MagicISO Inc. |
| .BIN | Unknown Developer | Diskbildefiler | Binary Disk Image File | IsoBuster | Smart Projects |
| .BWA | VSO Software | Diskbildefiler | BlindWrite Disk Information File | BlindWrite | VSO Software |
| .BWI | VSO Software | Diskbildefiler | BlindWrite CD/DVD Disc Image | H+H Software Virtual CD | H+H Software GmbH |
| .BWS | VSO Software | Diskbildefiler | BlindWrite Sub Code File | BlindWrite | VSO Software |
| .BWT | VSO Software | Diskbildefiler | BlindWrite 4 Track Information FIle | EZB Systems UltraISO | EZB Systems |
| .BWZ | Gilles Vollant | Diskbildefiler | WinImage Batch Configuration File | Gilles Vollant WinImage | Gilles Vollant |
| .C2D | Roxio | Diskbildefiler | WinOnCD Disc Image File | IsoBuster | Smart Projects |
| .C2L | CeQuadrat | Diskbildefiler | Cequadrat WinOnCD File | WinOnCD | Roxio |
| .CAT | Microsoft Corporation | Diskbildefiler | Windows Catalog File | Microsoft Windows | Microsoft Corporation |
| .CDI | Intex Solutions, Inc. | Diskbildefiler | INTEX DealMaker Output | DealMaker | Intex Solutions, Inc. |
| .CDM | NTI Corporation | Diskbildefiler | NTI CD-Maker Image | Media Maker Express | NTI Corporation |
| .CDR | Corel | Diskbildefiler | CorelDRAW Vector Image File | Adobe Illustrator CC | Adobe Systems Incorporated |
| .CDT | Sony | Diskbildefiler | CD-Text File | IsoBuster | Smart Projects |
| .CFS | Apache HTTP Project Management Committee | Diskbildefiler | Lucene Compound Index File | Apache Lucene | Apache Software Foundation |
| .CIF | Corel | Diskbildefiler | Easy CD Creator Disk Image | IsoBuster | Smart Projects |
| .CL5 | Roxio | Diskbildefiler | Easy CD Creator 5 Saved Project | Roxio Easy CD Creator | Roxio |
| .CSO | Microsoft Corporation | Diskbildefiler | Compiled Shader Object File | Microsoft Visual Studio | Microsoft Corporation |
| .CUE | Unknown Developer | Diskbildefiler | Cue Sheet File | Microsoft Notepad | Microsoft Corporation |
| .D00 | FarStone Technology | Diskbildefiler | VirtualDrive Disc Image Part File | VirtualDrive 16 Pro | FarStone Technology |
| .D01 | Yamaha Corporation | Diskbildefiler | OPL2 FM Audio File | Winamp with Ganbatte! Plug-in | Unknown Developer |
| .D64 | Commodore International | Diskbildefiler | Commodore 64 Disk Image | Power64 | MacUpdate |
| .DAA | PowerISO Computing, Inc | Diskbildefiler | PowerISO Direct-Access-Archive | PowerISO | Power Software Ltd |
| .DAO | Smart Projects | Diskbildefiler | Disk At Once CD/DVD Image | IsoBuster | Smart Projects |
| .DART | Google | Diskbildefiler | Dart Source Code File | DART | DARTECH |
| .DAT | Unknown Developer | Diskbildefiler | Game Data | Dragon UnPACKer | Open Source |
| .DAX | Open Source | Diskbildefiler | PSP Compressed ISO Disc Image | UMDGen | Open Source |
| .DBR | Astonsoft | Diskbildefiler | DeepBurner Disc Project | DeepBurner | Astonsoft |
| .DCF | Sony Mobile Communications | Diskbildefiler | DRM Content Format File | DRM Packager | Sony Mobile Communications |
| .DCM | National Electrical Manufacturers Association (NEMA) | Diskbildefiler | DICOM Image File Format | Adobe Photoshop | Adobe Systems Incorporated |
| .DDI | Unknown Developer | Diskbildefiler | DiskDupe Disk Image | Unknown Software | Unknown Developer |
| .DI | Atari Corporation | Diskbildefiler | Atari Disk Image | PC Xformer Classic | Emulators, Inc |
| .DISK | Open Source | Diskbildefiler | Linux Virtual Hard Disk | Linux | Open Source |
| .DMG | Apple | Diskbildefiler | Mac OS X Disk Image File | 7-Zip | Igor Pavlov |
| .DSK | Power Software Ltd | Diskbildefiler | General Disk Image | PowerISO | Power Software Ltd |
| .DVD | Unknown Developer | Diskbildefiler | DOS Device Driver | MS-DOS | Microsoft Corporation |
| .E01 | GetData | Diskbildefiler | EnCase Image File | PassMark OSForensics | PassMark Software |
| .ECM | Rbcafe | Diskbildefiler | ECM Disc Image | Gemc | Interscape |
| .EDA | Chicken Systems | Diskbildefiler | Ensoniq ASR Disk Image | Chicken Systems Ensoniq Disk Tools | Chicken Systems |
| .EDE | Chicken Systems | Diskbildefiler | Ensoniq EPS Disk Image | Chicken Systems Ensoniq Disk Tools | Chicken Systems |
| .EDK | Chicken Systems | Diskbildefiler | Ensoniq KT Disk Image | Chicken Systems Ensoniq Disk Tools | Chicken Systems |
| .EDQ | Chicken Systems | Diskbildefiler | Ensoniq SQ1/SQ2/KS32 Disk Image | Chicken Systems Ensoniq Disk Tools | Chicken Systems |
| .EDS | Chicken Systems | Diskbildefiler | Ensoniq SQ80 Disk Image | Chicken Systems Ensoniq Disk Tools | Chicken Systems |
| .EDV | Chicken Systems | Diskbildefiler | Ensoniq VFX-SD Disk Image | Chicken Systems Ensoniq Disk Tools | Chicken Systems |
| .EGO | Horizon DataSys | Diskbildefiler | Rollback Rx Drive Image | Rollback Rx | Horizon DataSys |
| .EUI | FMJ-Software | Diskbildefiler | Ensoniq EPS Compacted Disk Image | Chicken Systems Ensoniq Disk Tools | Chicken Systems |
| .EZB | EZB Systems | Diskbildefiler | EasyBoot Disk Image | EasyBoot | EZB Systems |
| .FCD | Smart Projects | Diskbildefiler | Virtual CD Format | IsoBuster | Smart Projects |
| .FDD | Parallels | Diskbildefiler | Parallels Desktop Floppy Disk Image File | Parallels Desktop for Mac | Parallels |
| .FDI | Open Source | Diskbildefiler | Floppy Disk Image Files | Amiga Forever | Cloanto Corporation |
| .FDK | Interscape | Diskbildefiler | Fluentizer Fluent Dictionary | Fluentizer | Interscape |
| .FLG | Larry Short, Mick Amadio and Puppy community | Diskbildefiler | Puppy Linux Partition Flag File | Puppy Linux | Larry Short, Mick Amadio and Puppy community |
| .FLP | Image-Line | Diskbildefiler | FL Studio Project File | LMMS | Open Source |
| .GBI | Power Software Ltd | Diskbildefiler | gBurner Project File | gBurner | Power Software Ltd |
| .GCD | General CADD Products | Diskbildefiler | Generic CADD Drawing File | General CADD Pro | General CADD Products |
| .GI | Smart Projects | Diskbildefiler | Global Image File | IsoBuster | Smart Projects |
| .GKH | Chicken Systems | Diskbildefiler | Ensoniq EPS Family Disk Image | Chicken Systems Ensoniq Disk Tools | Chicken Systems |
| .HC | Open Source | Diskbildefiler | VeraCrypt Container File | VeraCrypt | Open Source |
| .HDD | Parallels | Diskbildefiler | Parallels Desktop Hard Disk File | Parallels Desktop for Mac | Parallels |
| .HDI | Open Source | Diskbildefiler | Hard Disk Image | Anex86 | Open Source |
| .HDS | Parallels | Diskbildefiler | Parallels Desktop Hard Disk File | Parallels Desktop for Mac | Parallels |
| .HFS | Open Source | Diskbildefiler | HFS Disk Image File | SheepShaver | Christian Bauer |
| .HFV | Open Source | Diskbildefiler | HFS Disk Image File | SheepShaver | Christian Bauer |
| .I00 | Daemon Tools | Diskbildefiler | DVD Shrink Part 1 File | Alcohol 120% | Alcohol Soft |
| .I01 | Daemon Tools | Diskbildefiler | DVD Shrink Part 2 File | Alcohol 120% | Alcohol Soft |
| .I02 | Disc Soft Ltd. | Diskbildefiler | DVD Shrink Part 3 File | DAEMON Tools | Disc Soft Ltd. |
| .I03 | Lightning UK! | Diskbildefiler | Split Disk Image File | Lightning UK! ImgBurn | Lightning UK! |
| .I04 | Lightning UK! | Diskbildefiler | Split Disk Image File | Lightning UK! ImgBurn | Lightning UK! |
| .I05 | Lightning UK! | Diskbildefiler | Split Disk Image File | Lightning UK! ImgBurn | Lightning UK! |
| .IBP | Smart Projects | Diskbildefiler | IsoBuster Managed Image Information File | IsoBuster | Smart Projects |
| .IBQ | Smart Projects | Diskbildefiler | IsoBuster Managed Image File | IsoBuster | Smart Projects |
| .IMA | Sage | Diskbildefiler | Sage ACT! Email Message | Act! | Swiftpage, Inc. |
| .IMAGE | Apple | Diskbildefiler | Apple Disk Image | Roxio Toast 15 | Roxio |
| .IMG | Unknown Developer | Diskbildefiler | Disk Image Data File | IsoBuster | Smart Projects |
| .IMZ | Gilles Vollant | Diskbildefiler | WinImage Compressed Disk Image | Gilles Vollant WinImage | Gilles Vollant |
| .ISO | Igor Pavlov | Diskbildefiler | Disc Image File | 7-Zip | Igor Pavlov |
| .ISZ | EZB Systems | Diskbildefiler | Zipped ISO Disk Image | WinMount International WinMount | Winmount International Inc. |
| .IXA | Corel | Diskbildefiler | Ulead Disc Image Format | DVD MovieFactory | Corel |
| .LCD | ABBYY | Diskbildefiler | ABBYY Language File | ABBYY FineReader | ABBYY |
| .LNX | Commodore International | Diskbildefiler | Commodore 64 Lynx Archive | VICE | Open Source |
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