- 360 - GoPro 360 video (QuickTime-based)
- 3FR - Hasselblad raw (TIFF-based)
- 3G2, 3GP2 - 3rd Gen. Partnership Project 2 audio/video (QuickTime-based)
- 3GP, 3GPP - 3rd Gen. Partnership Project audio/video (QuickTime-based)
- A - Unix static library code Archive
- AA - Audible Audiobook
- AAC - Audio files
- AAE - Apple edit information (XML PLIST-based)
- AAX - Audible Enhanced Audiobook (QuickTime-based)
- ACR - American College of Radiology ACR-NEMA (DICOM-like)
- AFM, ACFM, AMFM - Adobe (Composite/Multiple Master) Font Metrics
- AI, AIT - Adobe Illustrator (Template, PS or PDF)
- AIFF, AIF, AIFC - Audio Interchange File Format (Compressed)
- APE - Monkey's Audio
- ARQ - Sony Alpha Pixel-Shift raw (TIFF-based)
- ARW - Sony Alpha raw (TIFF-based)
- ASF - Microsoft Advanced Systems Format
- AVI - Audio Video Interleaved (RIFF-based)
- AVIF - AV1 Image File Format (QuickTime-based)
- BMP, DIB - Windows BitMaP / Device Independent Bitmap
- BPG - Better Portable Graphics
- BTF - BigTIFF (64-bit Tagged Image File Format)
- CHM - Microsoft Compiled HTML format
- COS - Capture One Settings (XML-based)
- CR2 - Canon Raw 2 (TIFF-based) (CR2 specification)
- CR3 - Canon Raw 3 (QuickTime-based) (CR3 specification)
- CRM - Canon RAW Movie (QuickTime-based)
- CRW, CIFF - Canon Raw Camera Image File Format (CRW specification)
- CS1 - Sinar CaptureShop 1-shot raw (PSD-based)
- CSV - Comma-Separated Values
- CZI - Zeiss Integrated Software RAW (ZISRAW)
- DCM, DC3, DIC, DICM - DICOM - Digital Imaging and Communications in Medicine
- DCP - DNG Camera Profile (DNG-like)
- DCR - Kodak Digital Camera Raw (TIFF-based)
- DFONT - Macintosh Data Fork Font
- DIVX - DivX media format (ASF-based)
- DJVU, DJV - DjVu image (AIFF-like)
- DNG - Digital Negative (TIFF-based)
- DOC, DOT - Microsoft Word Document/Template (FPX-like)
- DOCX, DOCM - Office Open XML Document (Macro-enabled)
- DOTX, DOTM - Office Open XML Document Template (Macro-enabled)
- DPX - Digital Picture Exchange
- DR4 - Canon DPP version 4 Recipe
- DSS, DS2 - Digital Speech Standard
- DYLIB - Mac OS X Mach-O executable and library files
- DV - Digital Video
- DVB - Digital Video Broadcasting (QuickTime-based)
- DVR-MS - Microsoft Digital Video Recording (ASF-based)
- EIP - Capture One Enhanced Image Package (ZIP-based)
- EPS, EPSF, PS - (Encapsulated) PostScript Format
- EPUB - Electronic Publication Format
- ERF - Epson Raw Format (TIFF-based)
- EXE, DLL - DOS/Windows executable and library files
- EXIF - Exchangeable Image File Format metadata (TIFF-based)
- EXR - Open EXR (Extended Range)
- EXV - Exiv2 metadata file (JPEG-based)
- F4A, F4B, F4P, F4V - Adobe Flash Player 9+ Audio/Video (Quicktime-based)
- FFF - Hasselblad Flexible File Format (TIFF-based)
- FFF - FLIR thermal image File Format
- FITS - Flexible Image Transport System
- FLA - Macromedia/Adobe Flash project (FPX-like)
- FLAC - Free Lossless Audio Codec
- FLIF - Free Lossless Image Format
- FLV - Flash Video
- FPF - FLIR Public image Format
- FPX - FlashPix image
- GIF - Compuserve Graphics Interchange Format
- GPR - GoPro Raw (DNG-based)
- GZ, GZIP - GNU ZIP compressed archive
- HDP, WDP, JXR - Windows HD Photo / Media Photo / JPEG XR (TIFF-based)
- HDR - Radiance RGBE (Red Green Blue Exponent) High Dynamic-Range
- HEIC, HEIF, HIF - High Efficiency Image Format (QuickTime-based)
- HTML, HTM, XHTML - (Extensible) HyperText Markup Language
- ICO, CUR - Windows Icon or Cursor
- ICC, ICM - International Color Consortium color profile
- ICS, ICAL - iCalendar Schedule
- IDML - Adobe InDesign Markup Language (ZIP/XML-based)
- IIQ - Phase One Intelligent Image Quality raw (TIFF-based)
- IND, INDD, INDT - Adobe InDesign Document/Template (XMP metadata only)
- INSP - Insta360 Picture (JPEG-based)
- INSV - Insta360 Video (QuickTime-based)
- INX - Adobe InDesign Interchange (XML-based, XMP metadata only)
- ISO - ISO 9660 disk image
- ITC - iTunes Cover Flow artwork
- J2C, J2K, JPC - JPEG 2000 codestream
- JP2, JPF, JPM, JPX - JPEG 2000 image (Compound/Extended)
- JPEG, JPG, JPE - Joint Photographic Experts Group image (see table below)
- JSON - JavaScript Object Notation
- JXL - JPEG XL (Extra longterm)
- K25 - Kodak DC25 raw (TIFF-based)
- KDC - Kodak Digital Camera raw (TIFF-based)
- KEY, KTH - Apple iWork '09 Keynote presentation/Theme
- LA - Lossless Audio (RIFF-based)
- LFP, LFR - Lytro Light Field Picture
- LNK - Microsoft Shell Link (Windows shortcut)
- LRV - Low-Resolution Video (QuickTime-based)
- M2TS, MTS, M2T, TS - MPEG-2 Transport Stream (used for AVCHD video)
- M4A, M4B, M4P, M4V - MPEG-4 Audio/Video (Quicktime-based)
- MACOS - MacOS "._" sidecar file (may have any extension)
- MAX - 3D Studio MAX (FPX-like)
- MEF - Mamiya (raw) Electronic Format (TIFF-based)
- MIE - Meta Information Encapsulation (MIE specification)
- MIFF, MIF - Magick Image File Format
- MKA, MKV, MKS - Matroska Audio/Video/Subtitle
- MOBI, AZW, AZW3 - Mobipocket electronic book (Palm-based)
- MODD - Sony Picture Motion metadata (XML PLIST-based)
- MOI - MOD Information file
- MOS - Creo Leaf Mosaic (TIFF-based)
- MOV, QT - Apple QuickTime Movie
- MP3 - MPEG-1 layer 3 audio (uses ID3 information)
- MP4 - Motion Picture Experts Group version 4 (Quicktime-based)
- MPC - Musepack Audio
- MPEG, MPG, M2V - Motion Picture Experts Group version 1 or 2
- MPO - Extended Multi-Picture format (JPEG with MPF extensions)
- MQV - Sony Mobile QuickTime Video
- MRW - Minolta Raw
- MXF - Material Exchange Format
- NEF - Nikon (raw) Electronic Format (TIFF-based)
- NMBTEMPLATE - Apple iWork '09 Numbers Template
- NRW - Nikon Raw (2) (TIFF-based)
- NUMBERS - Apple iWork '09 Numbers spreadsheet
- O - Unix compiled code Object
- ODB, ODC, ODF, ODG, ODI, ODP, ODS, ODT - Open Document Database/Chart/Formula/Graphics/Image/Presentation/Spreadsheet/Text (ZIP/XML-based)
- OFR - OptimFROG audio (RIFF-based)
- OGG, OGV - Ogg bitstream container
- ONP - ON1 Presets
- OPUS - Ogg Opus audio
- ORF - Olympus Raw Format (TIFF-based)
- OTF - Open Type Font
- PAC - Lossless Predictive Audio Compression (RIFF-based)
- PAGES - Apple iWork '09 Pages document
- PCD - Kodak Photo CD Image Pac
- PCX - PC Paintbrush
- PDB, PRC - Palm Database
- PDF - Adobe Portable Document Format
- PEF - Pentax (raw) Electronic Format (TIFF-based)
- PFA, PFB - PostScript Font ASCII/Binary
- PFM - Printer Font Metrics
- PGF - Progressive Graphics File
- PICT, PCT - Apple Picture file
- PLIST - Apple Property List (binary and XML formats)
- PMP - Sony DSC-F1 Cyber-Shot image
- PNG, JNG, MNG - Portable/JPEG/Multiple-image Network Graphics
- PPM, PBM, PGM - Portable Pixel/Bit/Gray Map
- PPT, PPS, POT - Microsoft PowerPoint Presentation/Slideshow/Template (FPX-like)
- POTX, POTM - Office Open XML Presentation Template (Macro-enabled)
- PPAX, PPAM - Office Open XML Presentation Addin (Macro-enabled)
- PPSX, PPSM - Office Open XML Presentation Slideshow (Macro-enabled)
- PPTX, PPTM - Office Open XML Presentation (Macro-enabled)
- PSD, PSB, PSDT - PhotoShop Drawing / Large Document / Template
- PSP, PSPIMAGE - Paint Shop Pro
- QTIF, QTI, QIF - QuickTime Image File
- R3D - Redcode raw video
- RA - RealAudio
- RAF - FujiFilm Raw Format
- RAM, RPM - RealAudio/Plug-in Metafile
- RAR - RAR Archive
- RAW - Kyocera Contax N Digital Raw
- RAW - Panasonic Raw (TIFF-based)
- RIFF, RIF - Resource Interchange File Format
- RM, RV, RMVB - Real Media/Video (Variable Bitrate)
- RSRC - Mac OS Resource
- RTF - Rich Text Format
- RW2 - Panasonic Raw 2 (TIFF-based)
- RWL - Leica Raw (TIFF-based)
- RWZ - Rawzor compressed image
- SEQ - FLIR Systems image Sequence
- SKETCH - Sketch design file
- SO - Unix ELF executable and Shared Object files
- SR2 - Sony Raw 2 (TIFF-based)
- SRF - Sony Raw Format (TIFF-based)
- SRW - Samsung Raw format (TIFF-based)
- SVG - Scalable Vector Graphics (XML-based)
- SWF - Shockwave Flash
- THM - Canon Thumbnail (JPEG)
- THMX - Office Open XML Theme
- TIFF, TIF - Tagged Image File Format
- TTF, TTC - True Type Font/Collection
- TORRENT - BitTorrent description file
- TXT - Text files
- VCF, VCARD - Virtual Card
- VOB - Video Object (MPEG-based)
- VRD - Canon DPP Recipe Data
- VSD - Microsoft Visio Drawing (FPX-like)
- WAV - Windows digital audio WAVeform (RIFF-based)
- WEBM - Google Web Movie (MKV-based)
- WEBP - Google Web Picture (RIFF-based)
- WMA, WMV - Windows Media Audio/Video (ASF-based)
- WTV - Windos recorded TV show
- WV - WavePack lossless audio (RIFF-based)
- X3F - Sigma/Foveon raw
- XCF - GIMP native image format
- XLS, XLT - Microsoft Excel Spreadsheet/Template (FPX-like)
- XLSX, XLSM, XLSB - Office Open XML Spreadsheet (Macro-enabled/Binary)
- XLTX, XLTM - Office Open XML Spreadsheet Template (Macro-enabled)
- XMP - Extensible Metadata Platform sidecar file
- ZIP - ZIP archive