Crate for determining the file format of a given file or stream.

It provides a variety of functions for identifying a wide range of file formats, including ZIP, Compound File Binary (CFB), Extensible Markup Language (XML) and more.

It checks the signature of the file to determine its format. If it is not recognized by its signature, it returns the default file format which is Arbitrary Binary Data (BIN).

Determines from a file:

use file_format::{FileFormat, Kind};

let format = FileFormat::from_file("fixtures/application/sample.pdf")?;
assert_eq!(format, FileFormat::PortableDocumentFormat);
assert_eq!(format.name(), "Portable Document Format");
assert_eq!(format.short_name(), "PDF");
assert_eq!(format.media_type(), "application/pdf");
assert_eq!(format.extension(), "pdf");
assert_eq!(format.kind(), Kind::Application);

Determines from bytes:

use file_format::{FileFormat, Kind};

let format = FileFormat::from_bytes(&[0xFF, 0xD8, 0xFF]);
assert_eq!(format, FileFormat::JointPhotographicExpertsGroup);
assert_eq!(format.name(), "Joint Photographic Experts Group");
assert_eq!(format.short_name(), "JPEG");
assert_eq!(format.media_type(), "image/jpeg");
assert_eq!(format.extension(), "jpg");
assert_eq!(format.kind(), Kind::Image);

Add this to your Cargo.toml:

[dependencies]
file-format = "0.16"

• 3D Manufacturing Format (3MF)
• 3D Studio (3DS)
• 3D Studio Max (MAX)
• 3rd Generation Partnership Project (3GPP)
• 3rd Generation Partnership Project 2 (3GPP2)
• 7-Zip (7Z)
• ALZ
• AV1 Image File Format (AVIF)
• AV1 Image File Format Sequence (AVIFS)
• Adaptable Scalable Texture Compression (ASTC)
• Adaptive Multi-Rate (AMR)
• Additive Manufacturing Format (AMF)
• Adobe Flash Player Audio (F4A)
• Adobe Flash Player Audiobook (F4B)
• Adobe Flash Player Protected Video (F4P)
• Adobe Flash Player Video (F4V)
• Adobe Illustrator Artwork (AI)
• Adobe InDesign Document (INDD)
• Adobe Photoshop Document (PSD)
• Advanced Audio Coding (AAC)
• Advanced Media Video (AMV)
• Advanced Stream Redirector (ASX)
• Android Binary XML (AXML)
• Android Compiled Resources (ARSC)
• Android Package (APK)
• Animated Portable Network Graphics (APNG)
• Apache Arrow Columnar (Arrow)
• Apache Avro Object Container (Avro)
• Apache Parquet (Parquet)
• Apple Disk Image (DMG)
• Apple Icon Image (ICNS)
• Apple QuickTime (MOV)
• Apple iTunes Audio (M4A)
• Apple iTunes Audiobook (M4B)
• Apple iTunes Protected Audio (M4P)
• Apple iTunes Video (M4V)
• Arbitrary Binary Data (BIN)
• Archived by Robert Jung (ARJ)
• Au
• Audio Codec 3 (AC3)
• Audio Interchange File Format (AIFF)
• Audio Video Interleave (AVI)
• AutoCAD Drawing (DWG)
• Autodesk Animator (FLI)
• Autodesk Animator Pro (FLC)
• Better Portable Graphics (BPG)
• BitTorrent File (Torrent)
• Bitmap Font ASCII (FNT)
• Bitmap Font Binary (FNT)
• Blender (BLEND)
• Cabinet (CAB)
• Canon Raw 2 (CR2)
• Canon Raw 3 (CR3)
• Cineon (CIN)
• Circuit Diagram Document (CDDX)
• Clojure Script
• Common Object File Format (COFF)
• Compound File Binary (CFB)
• Creative Voice (VOC)
• DER Certificate (DER)
• Dalvik Executable (DEX)
• Debian Binary Package (DEB)
• Design Web Format XPS (DWFX)
• Digital Asset Exchange (DAE)
• Digital Imaging and Communications in Medicine (DICOM)
• Digital Picture Exchange (DPX)
• DjVu
• Drawing Exchange Format ASCII (DXF)
• Drawing Exchange Format Binary (DXF)
• Dynamic Link Library (DLL)
• Electronic Publication (EPUB)
• Embedded OpenType (EOT)
• Encapsulated PostScript (EPS)
• Enterprise Application Archive (EAR)
• Executable and Linkable Format (ELF)
• Experimental Computing Facility (XCF)
• Extensible 3D Graphics (X3D)
• Extensible Archive (XAR)
• Extensible Markup Language (XML)
• Extensible Stylesheet Language Transformations (XSLT)
• FastTracker 2 Extended Module (XM)
• Filmbox (FBX)
• Flash Video (FLV)
• Flexible Image Transport System (FITS)
• Free Lossless Audio Codec (FLAC)
• Free Lossless Image Format (FLIF)
• Fujifilm Raw (RAF)
• GL Transmission Format Binary (GLB)
• GPS Exchange Format (GPX)
• Game Boy Advance ROM (GBA)
• Game Boy Color ROM (GBC)
• Game Boy ROM (GB)
• Geography Markup Language (GML)
• Google Chrome Extension (CRX)
• Google Draco (Draco)
• Graphics Interchange Format (GIF)
• High Efficiency Image Coding (HEIC)
• High Efficiency Image Coding Sequence (HEICS)
• High Efficiency Image File Format (HEIF)
• High Efficiency Image File Format Sequence (HEIFS)
• HyperText Markup Language (HTML)
• ICC Profile (ICC)
• ISO 9660 (ISO)
• Impulse Tracker Module (IT)
• InDesign Markup Language (IDML)
• Inter-Quake Export (IQE)
• Inter-Quake Model (IQM)
• JPEG 2000 Part 1 (JP2)
• JPEG 2000 Part 2 (JPX)
• JPEG 2000 Part 3 (MJ2)
• JPEG 2000 Part 6 (JPM)
• JPEG Network Graphics (JNG)
• JPEG XL (JXL)
• JPEG-LS (JLS)
• Java Archive (JAR)
• Java Class (Class)
• Java KeyStore (JKS)
• Joint Photographic Experts Group (JPEG)
• Keyhole Markup Language (KML)
• Keyhole Markup Language Zipped (KMZ)
• Khronos Texture (KTX)
• Khronos Texture 2 (KTX2)
• LArc (LZS)
• LHA
• LLVM Bitcode (BC)
• LZ4
• LaTeX (TeX)
• Lempel–Ziv Finite State Entropy (LZFSE)
• Long Range ZIP (LRZIP)
• Lua Bytecode
• Lua Script
• MP3 URL (M3U)
• MPEG-1 Audio Layer 1 (MP1)
• MPEG-1 Audio Layer 2 (MP2)
• MPEG-1 Video (MPG)
• MPEG-1/2 Audio Layer 3 (MP3)
• MPEG-2 Transport Stream (MTS)
• MPEG-4 Part 14 Video (MP4)
• MS-DOS Batch (Batch)
• MS-DOS Executable (EXE)
• Mach-O
• MagicaVoxel (VOX)
• Magick Image File Format (MIFF)
• Material Exchange Format (MXF)
• Matroska Video (MKV)
• Maya ASCII (MA)
• Maya Binary (MB)
• Meta Information Encapsulation (MIE)
• Microsoft Access 2007 Database (ACCDB)
• Microsoft Access Database (MDB)
• Microsoft Compiled HTML Help (CHM)
• Microsoft DirectDraw Surface (DDS)
• Microsoft Excel Spreadsheet (XLS)
• Microsoft PowerPoint Presentation (PPT)
• Microsoft Project Plan (MPP)
• Microsoft Publisher Document (PUB)
• Microsoft Software Installer (MSI)
• Microsoft Virtual Hard Disk (VHD)
• Microsoft Virtual Hard Disk 2 (VHDX)
• Microsoft Visio Drawing (VSD)
• Microsoft Visual Studio Extension (VSIX)
• Microsoft Visual Studio Solution (SLN)
• Microsoft Word Document (DOC)
• Mobipocket (MOBI)
• Model 3D ASCII (A3D)
• Model 3D Binary (M3D)
• Monkey's Audio (APE)
• Multiple-image Network Graphics (MNG)
• Musepack (MPC)
• MusicXML
• MusicXML Zipped (MXL)
• Musical Instrument Digital Interface (MIDI)
• Nikon Electronic File (NEF)
• Nintendo 64 ROM (Z64)
• Nintendo DS ROM (NDS)
• Nintendo Entertainment System ROM (NES)
• Office Open XML Document (DOCX)
• Office Open XML Drawing (VSDX)
• Office Open XML Presentation (PPTX)
• Office Open XML Spreadsheet (XLSX)
• Ogg FLAC (OGA)
• Ogg Media (OGM)
• Ogg Multiplexed Media (OGX)
• Ogg Opus (Opus)
• Ogg Speex (Speex)
• Ogg Theora (Theora)
• Ogg Vorbis (Vorbis)
• Olympus Raw Format (ORF)
• OpenDocument Graphics (ODG)
• OpenDocument Presentation (ODP)
• OpenDocument Spreadsheet (ODS)
• OpenDocument Text (ODT)
• OpenEXR (EXR)
• OpenRaster (ORA)
• OpenType (OTF)
• Optimized Dalvik Executable (DEY)
• PCAP Dump (PCAP)
• PCAP Next Generation Dump (PCAPNG)
• PEG Extended Range (JXR)
• PEM Certificate (CRT)
• PEM Certificate Signing Request (CSR)
• PEM Private Key (KEY)
• PGP Message (PGP)
• PGP Private Key Block (PGP)
• PGP Public Key Block (PGP)
• PGP Signature (PGP)
• PGP Signed Message (PGP)
• PMarc (PMA)
• Panasonic Raw (RW2)
• Perl Script
• Personal Storage Table (PST)
• Plain Text (TXT)
• Polygon ASCII (PLY)
• Polygon Binary (PLY)
• Portable Arbitrary Map (PAM)
• Portable BitMap (PBM)
• Portable Document Format (PDF)
• Portable Executable (PE)
• Portable FloatMap (PFM)
• Portable GrayMap (PGM)
• Portable Network Graphics (PNG)
• Portable PixMap (PPM)
• PostScript (PS)
• Python Script
• Qualcomm PureVoice (QCP)
• Quite OK Audio (QOA)
• Quite OK Image (QOI)
• Radiance HDR (HDR)
• Really Simple Syndication (RSS)
• Red Hat Package Manager (RPM)
• Rich Text Format (RTF)
• Roshal Archive (RAR)
• Ruby Script
• SHOUTcast Playlist (PLS)
• SQLite 3
• Scalable Vector Graphics (SVG)
• Scream Tracker 3 Module (S3M)
• SeqBox (SBX)
• Shapefile (SHP)
• Shell Script
• Silicon Graphics Image (SGI)
• Simple Object Access Protocol (SOAP)
• SketchUp (SKP)
• Small Web Format (SWF)
• Snappy
• Sony DSD Stream File (DSF)
• Sony Movie (MQV)
• SoundFont 2 (SF2)
• Stereolithography ASCII (STL)
• Stereolithography Binary (STL)
• SubRip Text (SRT)
• TASTy
• Tag Image File Format (TIFF)
• Tape Archive (TAR)
• Tool Command Language Script (Tcl Script)
• TrueType (TTF)
• UNIX archiver (archiver)
• UNIX compress (compress)
• Ultimate Soundtracker Module (MOD)
• Universal 3D (U3D)
• VirtualBox Virtual Disk Image (VDI)
• WavPack (WV)
• Waveform Audio (WAV)
• Web Application Archive (WAR)
• Web Open Font Format (WOFF)
• Web Open Font Format 2 (WOFF2)
• WebAssembly Binary (Wasm)
• WebAssembly Text (WAT)
• WebM
• WebP
• Windows Animated Cursor (ANI)
• Windows App Package (APPX)
• Windows Bitmap (BMP)
• Windows Cursor (CUR)
• Windows Icon (ICO)
• Windows Media Video (WMV)
• Windows Metafile (WMF)
• Windows Shortcut (LNK)
• X PixMap (XPM)
• XAP
• XML Localization Interchange File Format (XLIFF)
• XML Shareable Playlist Format (XSPF)
• XPInstall (XPI)
• XZ
• ZIP
• Zstandard (zstd)
• bzip2 (BZ2)
• cpio
• draw.io (DRAWIO)
• farbfeld (FF)
• gettext Machine Object (MO)
• gzip (GZ)
• iCalendar (ICS)
• iOS App Store Package (IPA)
• lzip (LZ)
• lzop (LZO)
• macOS Alias (Alias)
• vCalendar (VCS)
• vCard (VCF)
• zoo

This project is licensed under either of:

• Apache License, Version 2.0
• MIT license