# List of file signatures

A file signature is data used to identify or verify the content of a file. Such signatures are also known as magic numbers or magic bytes.
Many file formats are not intended to be read as text. If such a file is accidentally viewed as a text file, its contents will be unintelligible. However, some file signatures can be recognizable when interpreted as text. In the table below, the column "ISO 8859-1" shows how the file signature appears when interpreted as text in the common ISO 8859-1 encoding, with unprintable characters represented as the control code abbreviation or symbol, or codepage 1252 character where available, or a box otherwise. In some cases the space character is shown as ␠.
| Hex signature | ISO 8859-1 | Offset | Extension | Description |
| 23 21 | #! | 0 | | Script or data to be passed to the program following the shebang (#!) |
| 02 00 5a 57 52 54 00 00 00 00 00 00 00 00 00 00 | ␂␀ZWRT␀␀␀␀␀␀␀␀␀␀ | 0 | cwk | Claris Works word processing doc |
| 00 00 02 00 06 04 06 00 08 00 00 00 00 00 | ␀␀␂␀␆␄␆␀␈␀␀␀␀␀ | 0 | wk1 | Lotus 1-2-3 spreadsheet (v1) file |
| 00 00 1A 00 00 10 04 00 00 00 00 00 | ␀␀␚␀␀␊␄␀␀␀␀␀ | 0 | wk3 | Lotus 1-2-3 spreadsheet (v3) file |
| 00 00 1A 00 02 10 04 00 00 00 00 00 | ␀␀␚␀␂␊␄␀␀␀␀␀ | 0 | wk4 wk5 | Lotus 1-2-3 spreadsheet (v4, v5) file |
| 00 00 1A 00 05 10 04 | ␀␀␚␀␅␊␄ | 0 | 123 | Lotus 1-2-3 spreadsheet (v9) file |
| 00 00 03 F3 | ␀␀␃ó | 0 | | Amiga Hunk executable file |
| 00 00 49 49 58 50 52 (little-endian) 00 00 4D 4D 58 50 52 (big-endian) | ␀␀IIXPR ␀␀MMXPR | 0 | qxd | Quark Express document |
| 50 57 53 33 | PWS3 | 0 | psafe3 | Password Gorilla Password Database |
| D4 C3 B2 A1 (little-endian) | ÔÃ²¡ | 0 | pcap | Libpcap File Format |
| A1 B2 C3 D4 (big-endian) | ¡²ÃÔ | 0 | pcap | Libpcap File Format |
| 4D 3C B2 A1 (little-endian) | M<²¡ | 0 | pcap | Libpcap File Format (nanosecond-resolution) |
| A1 B2 3C 4D (big-endian) | ¡²<M | 0 | pcap | Libpcap File Format (nanosecond-resolution) |
| 0A 0D 0D 0A | ␊␍␍␊ | 0 | pcapng | PCAP Next Generation Dump File Format |
| ED AB EE DB | í«îÛ | 0 | rpm | RedHat Package Manager (RPM) package |
| 53 51 4C 69 74 65 20 66 6F 72 6D 61 74 20 33 00 | SQLite format 3␀ | 0 | sqlitedb sqlite db | SQLite Database |
| 53 50 30 31 | SP01 | 0 | bin | Amazon Kindle Update Package |
| 49 57 41 44 | IWAD | 0 | wad | internal WAD (main resource file of Doom) |
| 00 | ␀ | 0 | PIC PIF SEA YTR | IBM Storyboard bitmap file Windows Program Information File Mac Stuffit Self-Extracting Archive IRIS OCR data file |
| 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 | ␀␀␀␀␀␀␀␀ ␀␀␀␀␀␀␀␀ ␀␀␀␀␀␀␀␀ | 11 | PDB | PalmPilot Database/Document File |
| BE BA FE CA | ¾ºþÊ | 0 | DBA | Palm Desktop Calendar Archive |
| 00 01 42 44 | ␀␁BD | 0 | DBA | Palm Desktop To Do Archive |
| 00 01 44 54 | ␀␁DT | 0 | TDA | Palm Desktop Calendar Archive |
| 54 44 46 24 | TDF$ | 0 | TDF$ | Telegram Desktop File |
| 54 44 45 46 | TDEF | 0 | TDEF | Telegram Desktop Encrypted File |
| 00 01 00 00 | ␀␁␀␀ | 0 | | Palm Desktop Data File (Access format) |
| 00 00 01 00 | ␀␀␁␀ | 0 | ico | Computer icon encoded in ICO file format |
| 69 63 6e 73 | icns | 0 | icns | Apple Icon Image format |
| 66 74 79 70 33 67 | ftyp3g | 4 | 3gp 3g2 | 3rd Generation Partnership Project 3GPP and 3GPP2 multimedia files |
| 66 74 79 70 68 65 69 6366 74 79 70 6d | ftypheic | 4 | heic | High Efficiency Image Container (HEIC) |
| 1F 9D | ␟□ | 0 | z tar.z | compressed file (often tar zip) using Lempel-Ziv-Welch algorithm |
| 1F A0 | ␟⍽ | 0 | z tar.z | Compressed file (often tar zip) using LZH algorithm |
| 2D 6C 68 30 2D | -lh0- | 2 | lzh | Lempel Ziv Huffman archive file Method 0 (No compression) |
| 2D 6C 68 35 2D | -lh5- | 2 | lzh | Lempel Ziv Huffman archive file Method 5 (8 KiB sliding window) |
| 42 41 43 4B 4D 49 4B 45 44 49 53 4B | BACKMIKEDISK | 0 | bac | AmiBack Amiga Backup data file |
| 49 4E 44 58 | INDX | 0 | idx | AmiBack Amiga Backup index file |
| 62 70 6C 69 73 74 | bplist | 0 | plist | Binary Property List file |
| 42 5A 68 | BZh | 0 | bz2 | Compressed file using Bzip2 algorithm |
| 47 49 46 38 37 61 47 49 46 38 39 61 | GIF87a GIF89a | 0 | gif | Image file encoded in the Graphics Interchange Format (GIF) |
| 49 49 2A 00 (little-endian) | II*␀ | 0 | tif tiff | Tagged Image File Format (TIFF) |
| 4D 4D 00 2A (big-endian) | MM␀* | 0 | tif tiff | Tagged Image File Format (TIFF) |
| 49 49 2B 00 (little-endian) | II+␀ | 0 | tif tiff | BigTIFF |
| 4D 4D 00 2B (big-endian) | MM␀+ | 0 | tif tiff | BigTIFF |
| 49 49 2A 00 10 00 00 00 43 52 | II*␀␐␀␀␀CR | 0 | cr2 | Canon RAW Format Version 2 Canon's RAW format is based on TIFF. |
| 66 74 79 70 63 72 78 43 52 | ftypcrx | 0 | cr3 |
| 80 2A 5F D7 | €*_× | 0 | cin | Kodak Cineon image |
| 52 4E 43 01 52 4E 43 02 | RNC␁ RNC␂ | 0 | | Compressed file using Rob Northen Compression (version 1 and 2) algorithm |
| 4E 55 52 55 49 4D 47 4E 55 52 55 50 41 4C | NURUIMG NURUPAL | 0 | nui nup | nuru ASCII/ANSI image and palette files |
| 53 44 50 58 (big-endian format) | SDPX | 0 | dpx | SMPTE DPX image |
| 58 50 44 53 (little-endian format) | XPDS | 0 | dpx | SMPTE DPX image |
| 76 2F 31 01 | v/1␁ | 0 | exr | OpenEXR image |
| 42 50 47 FB | BPGû | 0 | bpg | Better Portable Graphics format |
| FF D8 FF DB | ÿØÿÛ | 0 | jpg jpeg | JPEG raw or in the JFIF or Exif file format |
| FF D8 FF E0 00 10 4A 46 49 46 00 01 | ÿØÿà␀␐JFIF␀␁ | 0 | jpg jpeg | JPEG raw or in the JFIF or Exif file format |
| FF D8 FF EE | ÿØÿî | 0 | jpg jpeg | JPEG raw or in the JFIF or Exif file format |
| FF D8 FF E1 ?? ?? 45 78 69 66 00 00 | ÿØÿá??Exif␀␀ | 0 | jpg jpeg | JPEG raw or in the JFIF or Exif file format |
| FF D8 FF E0 | ÿØÿà | 0 | jpg | JPEG raw or in the JFIF or Exif file format |
| 00 00 00 0C 6A 50 20 20 0D 0A 87 0A | ␀␀␀␌jP␠␠␍␊‡␊ | 0 | jp2 j2k jpf jpm jpg2 j2c jpc jpx mj2 | JPEG 2000 format |
| FF 4F FF 51 | ÿOÿQ | 0 | jp2 j2k jpf jpm jpg2 j2c jpc jpx mj2 | JPEG 2000 format |
| 71 6f 69 66 | qoif | 0 | qoi | QOI - The “Quite OK Image Format” |
| 46 4F 52 4D ?? ?? ?? ?? 49 4C 42 4D | FORM????ILBM | 0 any | ilbm lbm ibm iff | IFF Interleaved Bitmap Image |
| 46 4F 52 4D ?? ?? ?? ?? 38 53 56 58 | FORM????8SVX | 0 any | 8svx 8sv svx snd iff | IFF 8-Bit Sampled Voice |
| 46 4F 52 4D ?? ?? ?? ?? 41 43 42 4D | FORM????ACBM | 0 any | acbm iff | Amiga Contiguous Bitmap |
| 46 4F 52 4D ?? ?? ?? ?? 41 4E 42 4D | FORM????ANBM | 0 any | anbm iff | IFF Animated Bitmap |
| 46 4F 52 4D ?? ?? ?? ?? 41 4E 49 4D | FORM????ANIM | 0 any | anim iff | IFF CEL Animation |
| 46 4F 52 4D ?? ?? ?? ?? 46 41 58 58 | FORM????FAXX | 0 any | faxx fax iff | IFF Facsimile Image |
| 46 4F 52 4D ?? ?? ?? ?? 46 54 58 54 | FORM????FTXT | 0 any | ftxt iff | IFF Formatted Text |
| 46 4F 52 4D ?? ?? ?? ?? 53 4D 55 53 | FORM????SMUS | 0 any | smus smu mus iff | IFF Simple Musical Score |
| 46 4F 52 4D ?? ?? ?? ?? 43 4D 55 53 | FORM????CMUS | 0 any | cmus mus iff | IFF Musical Score |
| 46 4F 52 4D ?? ?? ?? ?? 59 55 56 4E | FORM????YUVN | 0 any | yuvn yuv iff | IFF YUV Image |
| 46 4F 52 4D ?? ?? ?? ?? 46 41 4E 54 | FORM????FANT | 0 any | iff | Amiga Fantavision Movie |
| 46 4F 52 4D ?? ?? ?? ?? 41 49 46 46 | FORM????AIFF | 0 any | aiff aif aifc snd iff | Audio Interchange File Format |
| 4C 5A 49 50 | LZIP | 0 | lz | lzip compressed file |
| 30 37 30 37 30 37 | 070707 | 0 | cpio | cpio archive file |
| 4D 5A | MZ | 0 | exe dll mui sys scr cpl ocx ax iec ime rs tsp fon efi | DOS MZ executable and its descendants (including NE and PE) |
| 53 4D 53 4E 46 32 30 30 | SMSNF200 | 0 | ssp | SmartSniff Packets File |
| 5A 4D | ZM | 0 | exe | DOS ZM executable and its descendants (rare) |
| 50 4B 03 04 50 4B 05 06 (empty archive) 50 4B 07 08 (spanned archive) | PK␃␄ PK␅␆ PK␇␈ | 0 | zip aar apk docx epub ipa jar kmz maff msix odp ods odt pk3 pk4 pptx usdz vsdx xlsx xpi whl | zip file format and formats based on it, such as EPUB, JAR, ODF, OOXML |
| 52 61 72 21 1A 07 00 | Rar!␚␇␀ | 0 | rar | Roshal ARchive compressed archive v1.50 onwards |
| 52 61 72 21 1A 07 01 00 | Rar!␚␇␁␀ | 0 | rar | Roshal ARchive compressed archive v5.00 onwards |
| 7F 45 4C 46 | ␡ELF | 0 | none, .axf, .bin, .elf, .o, .out, .prx, .puff, .ko, .mod, .so | Executable and Linkable Format |
| 89 50 4E 47 0D 0A 1A 0A | ‰PNG␍␊␚␊ | 0 | png | Image encoded in the Portable Network Graphics format |
| 0E 03 13 01 | ␅␃␓␁ | 0 | hdf4 h4 | Data stored in version 4 of the Hierarchical Data Format. |
| 89 48 44 46 0D 0A 1A 0A | ‰HDF␍␊␚␊ | 0, 512, 1024, 2048, ... | hdf5 h5 | Data stored in version 5 of the Hierarchical Data Format. |
| C9 | É | 0 | com | CP/M 3 and higher with overlays |
| CA FE BA BE | Êþº¾ | 0 | class | Java class file, Mach-O Fat Binary |
| EF BB BF | ï»¿ | 0 | txt others | UTF-8 byte order mark, commonly seen in text files. |
| FF FE | ÿþ | 0 | txt others | UTF-16LE byte order mark, commonly seen in text files. |
| FE FF | þÿ | 0 | txt others | UTF-16BE byte order mark, commonly seen in text files. |
| FF FE 00 00 | ÿþ␀␀ | 0 | txt others | UTF-32LE byte order mark for text |
| 00 00 FE FF | ␀␀þÿ | 0 | txt others | UTF-32BE byte order mark for text |
| 2B 2F 76 38 2B 2F 76 39 2B 2F 76 2B 2B 2F 76 2F | +/v8 +/v9 +/v+ +/v/ | 0 | | UTF-7 byte order mark for text |
| 0E FE FF | ␎þÿ | 0 | txt others | SCSU byte order mark for text |
| DD 73 66 73 | Ýsfs | 0 | | UTF-EBCDIC byte order mark for text |
| FE ED FA CE | þíúÎ | 0 0x1000 | | Mach-O binary (32-bit) |
| FE ED FA CF | þíúÏ | 0 0x1000 | | Mach-O binary (64-bit) |
| FE ED FE ED | þíþí | 0 | | JKS Javakey Store |
| CE FA ED FE | Îúíþ | 0 | | Mach-O binary (reverse byte ordering scheme, 32-bit) |
| CF FA ED FE | Ïúíþ | 0 | | Mach-O binary (reverse byte ordering scheme, 64-bit) |
| 25 21 50 53 | %!PS | 0 | ps | PostScript document |
| 25 21 50 53 2D 41 64 6F 62 65 2D 33 2E 30 20 45 50 53 46 2D 33 2E 30 | %!PS-Adobe-3.0 ESPF-3.0 | 0 | eps epsf | Encapsulated PostScript file version 3.0 |
| 25 21 50 53 2D 41 64 6F 62 65 2D 33 2E 31 20 45 50 53 46 2D 33 2E 30 | %!PS-Adobe-3.1 ESPF-3.0 | 0 | eps epsf | Encapsulated PostScript file version 3.1 |
| 49 54 53 46 03 00 00 00 60 00 00 00 | ITSF␃␀␀␀`␀␀␀ | 0 | chm | MS Windows HtmlHelp Data |
| 3F 5F | ?_ | 0 | hlp | Windows 3.x/95/98 Help file |
| 25 50 44 46 2D | %PDF- | 0 | pdf | PDF document |
| 30 26 B2 75 8E 66 CF 11 A6 D9 00 AA 00 62 CE 6C | 0&²uŽfÏ␑¦Ù␀ª␀bÎl | 0 | asf wma wmv | Advanced Systems Format |
| 24 53 44 49 30 30 30 31 | $SDI0001 | 0 | | System Deployment Image, a disk image format used by Microsoft |
| 4F 67 67 53 | OggS | 0 | ogg oga ogv | Ogg, an open source media container format |
| 38 42 50 53 | 8BPS | 0 | psd | Photoshop Document file, Adobe Photoshop's native file format |
| 52 49 46 46 ?? ?? ?? ?? 57 41 56 45 | RIFF????WAVE | 0 | wav | Waveform Audio File Format |
| 52 49 46 46 ?? ?? ?? ?? 41 56 49 20 | RIFF????AVI␠ | 0 | avi | Audio Video Interleave video format |
| FF FB FF F3 FF F2 | ÿû ÿó ÿò | 0 | mp3 | MPEG-1 Layer 3 file without an ID3 tag or with an ID3v1 tag (which is appended at the end of the file) |
| 49 44 33 | ID3 | 0 | mp3 | MP3 file with an ID3v2 container |
| 42 4D | BM | 0 | bmp dib | BMP file, a bitmap format used mostly in the Windows world |
| 43 44 30 30 31 | CD001 | 0x8001 0x8801 0x9001 | iso | ISO9660 CD/DVD image file |
| 43 44 30 30 31 | CD001 | 0x5EAC9 | cdi | CD-i CD image file |
| 6D 61 69 6E 2E 62 73 | main.bs | 0 | mgw | Nintendo Game & Watch image file |
| 4E 45 53 | NES | 0 | nes | Nintendo Entertainment System image file |
| A0 32 41 A0 A0 A0 | 2A | 0x165A4 | d64 | Commodore 64 1541 disk image (D64 format) |
| 47 53 52 2D 31 35 34 31 | GCR-1541 | 0 | g64 | Commodore 64 1541 disk image (G64 format) |
| A0 33 44 A0 A0 | 3D | 0x61819 | d81 | Commodore 64 1581 disk image (D81 format) |
| 43 36 34 20 74 61 70 65 20 69 6D 61 67 65 20 66 69 6C 65 | C64 tape image file | 0 | t64 | Commodore 64 tape image |
| 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 | C64 CARTRIDGE␠␠␠ | 0 | crt | Commodore 64 cartridge image |
| 53 49 4D 50 4C 45 20 20 3D 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 54 | SIMPLE␠␠ =␠␠␠␠␠␠␠ ␠␠␠␠␠␠␠␠ ␠␠␠␠␠T | 0 | fits | Flexible Image Transport System (FITS) |
| 66 4C 61 43 | fLaC | 0 | flac | Free Lossless Audio Codec |
| 4D 54 68 64 | MThd | 0 | mid midi | MIDI sound file |
| D0 CF 11 E0 A1 B1 1A E1 | ÐÏ␑à¡±␚á | 0 | doc xls ppt msi msg | Compound File Binary Format, a container format defined by Microsoft COM. It can contain the equivalent of files and directories. It is used by Windows Installer and for documents in older versions of Microsoft Office. It can be used by other programs as well that rely on the COM and OLE API's. |
| 64 65 78 0A 30 33 35 00 | dex␊035␀ | 0 | dex | Dalvik Executable |
| 4B 44 4D | KDM | 0 | vmdk | VMDK files |
| 23 20 44 69 73 6B 20 44 65 73 63 72 69 70 74 6F | # Disk Descripto | 0 | vmdk | VMware 4 Virtual Disk description file (split disk) |
| 43 72 32 34 | Cr24 | 0 | crx | Google Chrome extension or packaged app |
| 41 47 44 33 | AGD3 | 0 | fh8 | FreeHand 8 document |
| 05 07 00 00 42 4F 42 4F 05 07 00 00 00 00 00 00 00 00 00 00 00 01 | ␅␇␀␀BOBO ␅␇␀␀␀␀␀␀ ␀␀␀␀␀␁ | 0 | cwk | AppleWorks 5 document |
| 06 07 E1 00 42 4F 42 4F 06 07 E1 00 00 00 00 00 00 00 00 00 00 01 | ␆␇á␀BOBO ␆␇á␀␀␀␀␀ ␀␀␀␀␀␁ | 0 | cwk | AppleWorks 6 document |
| 45 52 02 00 00 00 | ER␂␀␀␀ | 0 | toast | Roxio Toast disc image file |
| 8B 45 52 02 00 00 00 | ‹ER␂␀␀␀ | 0 | toast | Roxio Toast disc image file |
| 6B 6F 6C 79 | koly | end–512 | dmg | Apple Disk Image file |
| 78 61 72 21 | xar! | 0 | xar | eXtensible ARchive format |
| 50 4D 4F 43 43 4D 4F 43 | PMOCCMOC | 0 | dat | Windows Files And Settings Transfer Repository See also USMT 3.0 (Win XP) and USMT 4.0 (Win 7) User Guides |
| 4E 45 53 1A | NES␚ | 0 | nes | Nintendo Entertainment System ROM file |
| 75 73 74 61 72 00 30 30 75 73 74 61 72 20 20 00 | ustar␀00 ustar␠␠␀ | 257 | tar | tar archive |
| 4F 41 52 ?? | OAR? | 0 | oar | OAR file archive format, where ?? is the format version. |
| 74 6F 78 33 | tox3 | 0 | tox | Open source portable voxel file |
| 4D 4C 56 49 | MLVI | 0 | MLV | Magic Lantern Video file |
| 44 43 4D 01 50 41 33 30 50 41 33 30 | DCM␁PA30 PA30 | 0 | | Windows Update Binary Delta Compression file |
| 37 7A BC AF 27 1C | 7z¼¯'␜ | 0 | 7z | 7-Zip File Format |
| 1F 8B | ␟‹ | 0 | gz tar.gz | GZIP compressed file |
| FD 37 7A 58 5A 00 | ý7zXZ␀ | 0 | xz tar.xz | XZ compression utility using LZMA2 compression |
| 04 22 4D 18 | ␄"M␘ | 0 | lz4 | LZ4 Frame Format Remark: LZ4 block format does not offer any magic bytes. |
| 4D 53 43 46 | MSCF | 0 | cab | Microsoft Cabinet file |
| 53 5A 44 44 88 F0 27 33 | SZDDˆð'3 | 0 | ??_ | Microsoft compressed file in Quantum format, used prior to Windows XP. File can be decompressed using Extract.exe or Expand.exe distributed with earlier versions of Windows. After compression, the last character of the original filename extension is replaced with an underscore, e.g. ‘Setup.exe’ becomes ‘Setup.ex_’. |
| 46 4C 49 46 | FLIF | 0 | flif | Free Lossless Image Format |
| 1A 45 DF A3 | ␚Eß£ | 0 | mkv mka mks mk3d webm | Matroska media container, including WebM |
| 4D 49 4C 20 | MIL␠ | 0 | stg | "SEAN : Session Analysis" Training file. Also used in compatible software "Rpw : Rowperfect for Windows" and "RP3W : ROWPERFECT3 for Windows". |
| 41 54 26 54 46 4F 52 4D ?? ?? ?? ?? 44 4A 56 | AT&TFORM????DJV | 0 | djvu djv | DjVu document The following byte is either 55 (U) for single-page or 4D (M) for multi-page documents. |
| 30 82 | 0‚ | 0 | der | DER encoded X.509 certificate |
| 2D 2D 2D 2D 2D 42 45 47 49 4E 20 43 45 52 54 49 46 49 43 41 54 45 2D 2D 2D 2D 2D | -----BEGIN CERTIFICATE----- | 0 | crt pem | PEM encoded X.509 certificate |
| 2D 2D 2D 2D 2D 42 45 47 49 4E 20 43 45 52 54 49 46 49 43 41 54 45 20 52 45 51 55 45 53 54 2D 2D 2D 2D 2D | -----BEGIN CERTIFICATE REQUEST----- | 0 | csr pem | PEM encoded X.509 Certificate Signing Request |
| 2D 2D 2D 2D 2D 42 45 47 49 4E 20 50 52 49 56 41 54 45 20 4B 45 59 2D 2D 2D 2D 2D | -----BEGIN PRIVATE KEY----- | 0 | key pem | PEM encoded X.509 PKCS#8 private key |
| 2D 2D 2D 2D 2D 42 45 47 49 4E 20 44 53 41 20 50 52 49 56 41 54 45 20 4B 45 59 2D 2D 2D 2D 2D | -----BEGIN DSA PRIVATE KEY----- | 0 | key pem | PEM encoded X.509 PKCS#1 DSA private key |
| 2D 2D 2D 2D 2D 42 45 47 49 4E 20 52 45 41 20 50 52 49 56 41 54 45 20 4B 45 59 2D 2D 2D 2D 2D | -----BEGIN RSA PRIVATE KEY----- | 0 | key pem | PEM encoded X.509 PKCS#1 RSA private key |
| 50 75 54 54 59 2D 55 73 65 72 2D 4B 65 79 2D 46 69 6C 65 2D 32 3A | PuTTY-User-Key-File-2: | 0 | ppk | PuTTY private key file version 2 |
| 50 75 54 54 59 2D 55 73 65 72 2D 4B 65 79 2D 46 69 6C 65 2D 33 3A | PuTTY-User-Key-File-3: | 0 | ppk | PuTTY private key file version 3 |
| 2D 2D 2D 2D 2D 42 45 47 49 4E 20 4F 50 45 4E 53 53 48 20 50 52 49 56 41 54 45 20 4B 45 59 2D 2D 2D 2D 2D | -----BEGIN OPENSSH PRIVATE KEY----- | 0 | | OpenSSH private key file |
| 2D 2D 2D 2D 2D 42 45 47 49 4E 20 53 53 48 32 20 4B 45 59 2D 2D 2D 2D 2D | -----BEGIN SSH2 PUBLIC KEY----- | 0 | pub | OpenSSH public key file |
| 44 49 43 4D | DICM | 128 | dcm | DICOM Medical File Format |
| 77 4F 46 46 | wOFF | 0 | woff | WOFF File Format 1.0 |
| 77 4F 46 32 | wOF2 | 0 | woff2 | WOFF File Format 2.0 |
| 3C 3F 78 6D 6C 20 | <?xml␠ | 0 after BOM | xml (UTF-8 or other 8-bit encodings) | eXtensible Markup Language |
| 3C 00 3F 00 78 00 6D 00 6C 00 20 | <␀?␀x␀m␀l␀␠␀ | 0 after BOM | xml (UTF-16LE) | eXtensible Markup Language |
| 00 3C 00 3F 00 78 00 6D 00 6C 00 20 | ␀<␀?␀x␀m␀l␀␠ | 0 after BOM | xml (UTF-16BE) | eXtensible Markup Language |
| 3C 00 00 00 3F 00 00 00 78 00 00 00 6D 00 00 00 6C 00 00 00 20 00 00 00 | <␀␀␀?␀␀␀ x␀␀␀m␀␀␀ l␀␀␀␠␀␀␀ | 0 after BOM | xml (UTF-32LE) | eXtensible Markup Language |
| 00 00 00 3C 00 00 00 3F 00 00 00 78 00 00 00 6D 00 00 00 6C 00 00 00 20 | ␀␀␀<␀␀␀? ␀␀␀x␀␀␀m ␀␀␀l␀␀␀␠ | 0 after BOM | xml (UTF-32BE) | eXtensible Markup Language |
| 4C 6F A7 94 93 40 | Lo§”“@ | 0 after BOM | xml (EBCDIC) | eXtensible Markup Language |
| 00 61 73 6D | ␀asm | 0 | wasm | WebAssembly binary format |
| CF 84 01 | Ï„␁ | 0 | lep | Lepton compressed JPEG image |
| 43 57 53 | CWS | 0 | swf | Adobe Flash .swf |
| 46 57 53 | FWS | 0 | swf | Adobe Flash .swf |
| 21 3C 61 72 63 68 3E 0A | !<arch>␊ | 0 | deb | linux deb file |
| 52 49 46 46 ?? ?? ?? ?? 57 45 42 50 | RIFF????WEBP | 0 | webp | Google WebP image file, where ?? ?? ?? ?? is the file size. More information on WebP File Header |
| 27 05 19 56 | '␅␙V | 0 | | U-Boot / uImage. Das U-Boot Universal Boot Loader. |
| 7B 5C 72 74 66 31 | {\rtf1 | 0 | rtf | Rich Text Format |
| 54 41 50 45 | TAPE | 0 | | Microsoft Tape Format |
| 47 | G | 0 0xBC 0x178 ... (every 188th byte) | ts tsv tsa mpg mpeg | MPEG Transport Stream (MPEG-2 Part 1) |
| 00 00 01 BA | ␀␀␁º | 0 | m2p vob mpg mpeg | MPEG Program Stream (MPEG-1 Part 1 (essentially identical) and MPEG-2 Part 1) |
| 00 00 01 B3 | ␀␀␁³ | 0 | mpg mpeg | MPEG-1 video and MPEG-2 video (MPEG-1 Part 2 and MPEG-2 Part 2) |
| 66 74 79 70 69 73 6F 6D | ftypisom | 4 | mp4 | ISO Base Media file (MPEG-4) |
| 66 74 79 70 4D 53 4E 56 | ftypMSNV | 4 | mp4 | MPEG-4 video file |
| 78 01 | x␁ | 0 | zlib | No Compression (no preset dictionary) |
| 78 5E | x^ | 0 | zlib | Best speed (no preset dictionary) |
| 78 9C | xœ | 0 | zlib | Default Compression (no preset dictionary) |
| 78 DA | xÚ | 0 | zlib | Best Compression (no preset dictionary) |
| 78 20 | x␠ | 0 | zlib | No Compression (with preset dictionary) |
| 78 7D | x} | 0 | zlib | Best speed (with preset dictionary) |
| 78 BB | x» | 0 | zlib | Default Compression (with preset dictionary) |
| 78 F9 | xù | 0 | zlib | Best Compression (with preset dictionary) |
| 62 76 78 32 | bvx2 | 0 | lzfse | LZFSE - Lempel-Ziv style data compression algorithm using Finite State Entropy coding. OSS by Apple. |
| 4F 52 43 | ORC | 0 | orc | Apache ORC (Optimized Row Columnar) file format |
| 4F 62 6A 01 | Obj␁ | 0 | avro | Apache Avro binary file format |
| 53 45 51 36 | SEQ6 | 0 | rc | RCFile columnar file format |
| 3C 72 6F 62 6C 6F 78 21 | <roblox! | 0 | rbxl | Roblox place file |
| 65 87 78 56 | e‡xV | 0 | p25 obt | PhotoCap Object Templates |
| 55 55 AA AA | UUªª | 0 | pcv | PhotoCap Vector |
| 78 56 34 | xV4 | 0 | pbt pdt pea peb pet pgt pict pjt pkt pmt | PhotoCap Template |
| 50 41 52 31 | PAR1 | 0 | | Apache Parquet columnar file format |
| 45 4D 58 32 | EMX2 | 0 | ez2 | Emulator Emaxsynth samples |
| 45 4D 55 33 | EMU3 | 0 | ez3 iso | Emulator III synth samples |
| 1B 4C 75 61 | ␛Lua | 0 | luac | Lua bytecode |
| 62 6F 6F 6B 00 00 00 00 6D 61 72 6B 00 00 00 00 | book␀␀␀␀mark␀␀␀␀ | 0 | alias | macOS file Alias (Symbolic link) |
| 5B 5A 6F 6E 65 54 72 61 6E 73 66 65 72 5D | [ZoneTransfer] | 0 | Identifier | Microsoft Zone Identifier for URL Security Zones |
| 52 65 63 65 69 76 65 64 3A | Received: | 0 | eml | Email Message var5 |
| 20 02 01 62 A0 1E AB 07 02 00 00 00 | ␠␂␁b⍽␞«␇␂␀␀␀ | 0 | tde | Tableau Datasource |
| 37 48 03 02 00 00 00 00 58 35 30 39 4B 45 59 | 7H␃␂␀␀␀␀X509KEY | 0 | kdb | KDB file |
| 85 ?? ?? 03 | …??␃ | 0 | pgp | PGP file |
| 28 B5 2F FD | (µ/ý | 0 | zst | Zstandard compress |
| 52 53 56 4B 44 41 54 41 | RSVKDATA | 0 | rs | QuickZip rs compressed archive |
| 3A 29 0A | :)␊ | 0 | sml | Smile file |
| 4A 6F 79 21 | Joy! | 0 | | Preferred Executable Format |
| 34 12 AA 55 | 4␒ªU | 0 | vpk | VPK file, used to store game data for some Source Engine games |
| 2A 2A 41 43 45 2A 2A | **ACE** | 7 | ace | ACE (compressed file format) |
| 60 EA | `ê | 0 | arj | ARJ |
| 49 53 63 28 | ISc( | 0 | cab | InstallShield CAB Archive File |
| 4B 57 41 4A | KWAJ | 0 | ??_ | Windows 3.1x Compressed File |
| 53 5A 44 44 | SZDD | 0 | ??_ | Windows 9x Compressed File |
| 5A 4F 4F | ZOO | 0 | zoo | Zoo (file format) |
| 50 31 0A | P1␊ | 0 | pbm | Portable bitmap ASCII |
| 50 34 0A | P4␊ | 0 | pbm | Portable bitmap binary |
| 50 32 0A | P2␊ | 0 | pgm | Portable Gray Map ASCII |
| 50 35 0A | P5␊ | 0 | pgm | Portable Gray Map binary |
| 50 33 0A | P3␊ | 0 | ppm | Portable Pixmap ASCII |
| 50 36 0A | P6␊ | 0 | ppm | Portable Pixmap binary |
| D7 CD C6 9A | ×ÍÆš | 0 | wmf | Windows Metafile |
| 67 69 6D 70 20 78 63 66 | gimp xcf | 0 | xcf | XCF (file format) |
| 2F 2A 20 58 50 4D 20 2A 2F | /* XPM */ | 0 | xpm | X PixMap |
| 41 46 46 | AFF | 0 | aff | Advanced Forensics Format |
| 45 56 46 32 | EVF2 | 0 | Ex01 | EnCase EWF version 2 format |
| 45 56 46 | EVF | 0 | e01 | EnCase EWF version 1 format |
| 51 46 49 | QFI | 0 | qcow | qcow file format |
| 52 49 46 46 ?? ?? ?? ?? 41 43 4F 4E | RIFF????ACON | 0 | ani | Animated cursor |
| 52 49 46 46 ?? ?? ?? ?? 43 44 44 41 | RIFF????CDDA | 0 | cda | .cda file |
| 52 49 46 46 ?? ?? ?? ?? 51 4C 43 4D | RIFF????QLCM | 0 | qcp | Qualcomm PureVoice file format |
| 52 49 46 58 ?? ?? ?? ?? 46 47 44 4D (big-endian) | RIFX????FGDM | 0 | dcr | Adobe Shockwave |
| 58 46 49 52 ?? ?? ?? ?? 4D 44 47 46 (little-endian) | XFIR????MDGF | 0 | dcr | Adobe Shockwave |
| 52 49 46 58 ?? ?? ?? ?? 4D 56 39 33 (big-endian) | RIFX????MV93 | 0 | dir dxr drx | Macromedia Director file format |
| 58 46 49 52 ?? ?? ?? ?? 33 39 56 4D (little-endian) | XFIR????39VM | 0 | dir dxr drx | Macromedia Director file format |
| 46 4C 56 | FLV | 0 | flv | Flash Video file |
| 3C 3C 3C 20 4F 72 61 63 6C 65 20 56 4D 20 56 69 72 74 75 61 6C 42 6F 78 20 44 69 73 6B 20 49 6D 61 67 65 20 3E 3E 3E | <<< Orac le VM Vi rtualBox Disk Im age >>> | 0 | vdi | VirtualBox Virtual Hard Disk file format |
| 63 6F 6E 65 63 74 69 78 | conectix | 0 | vhd | Windows Virtual PC Virtual Hard Disk file format |
| 76 68 64 78 66 69 6C 65 | vhdxfile | 0 | vhdx | Windows Virtual PC Windows 8 Virtual Hard Disk file format |
| 49 73 5A 21 | IsZ! | 0 | isz | Compressed ISO image |
| 44 41 41 | DAA | 0 | daa | Direct Access Archive PowerISO |
| 4C 66 4C 65 | LfLe | 0 | evt | Windows Event Viewer file format |
| 45 6C 66 46 69 6C 65 | ElfFile | 0 | evtx | Windows Event Viewer XML file format |
| 73 64 62 66 | sdbf | 8 | sdb | Windows customized database |
| 50 4D 43 43 | PMCC | 0 | grp | Windows 3.x Program Manager Program Group file format |
| 4B 43 4D 53 | KCMS | 0 | icm | ICC profile |
| 72 65 67 66 | regf | 0 | dat hiv | Windows Registry file |
| 21 42 44 4E | !BDN | 0 | pst | Microsoft Outlook Personal Storage Table file |
| 44 52 41 43 4F | DRACO | 0 | drc | 3D model compressed with Google Draco |
| 47 52 49 42 | GRIB | 0 | grib grib2 | Gridded data (commonly weather observations or forecasts) in the WMO GRIB or GRIB2 format |
| 42 4C 45 4E 44 45 52 | BLENDER | 0 | blend | Blender File Format |
| 00 00 00 0C 4A 58 4C 20 0D 0A 87 0A | ␀␀␀␌JXL␠␍␊‡␊ | 0 | jxl | Image encoded in the JPEG XL format |
| FF 0A | ÿ␊ | 0 | jxl | Image encoded in the JPEG XL format |
| 00 01 00 00 00 | ␀␁␀␀␀ | 0 | ttf tte dfont | TrueType font |
| 4F 54 54 4F | OTTO | 0 | otf | OpenType font |
| 23 25 4D 6F 64 75 6C 65 | #%Module | 0 | | Modulefile for Environment Modules |
| 4D 53 57 49 4D 00 00 00 D0 00 00 00 00 | MSWIM␀␀␀Ð␀␀␀␀ | 0 | wim swm esd | Windows Imaging Format file |
| 21 2D 31 53 4C 4F 42 1F | !-1SLOB␟ | 0 | slob | Slob (sorted list of blobs) is a read-only, compressed data store with dictionary-like interface |
| AC ED | ¬í | 0 | | Serialized Java Data |
| 43 72 65 61 74 69 76 65 20 56 6F 69 63 65 20 46 69 6C 65 1A 1A 00 | Creative Voice File | 0 | voc | Creative Voice file |
| 2E 73 6E 64 | .snd | 0 | au snd | Au audio file format |
| DB 0A CE 00 | | 0 | | OpenGL Iris Perfomer .PFB (Performer Fast Binary) |
| 48 5a 4c 52 00 00 00 18 | HZLR | 0 | hazelrules | Noodlesoft Hazel |
| 46 4C 68 64 | FLhd | 0 | flp | FL Studio Project File |
| 31 30 4C 46 | 10LF | 0 | flm | FL Studio Mobile Project File |
| 52 4b 4d 43 32 31 30 | RKMC210 | 0 | | Vormetric Encryption DPM Version 2.1 Header |
| 00 01 00 00 4D 53 49 53 41 4D 20 44 61 74 61 62 61 73 65 | ␀␁␀␀MSISAM Database | 0 | mny | Microsoft Money file |
| 00 01 00 00 53 74 61 6E 64 61 72 64 20 41 43 45 20 44 42 | ␀␁␀␀Standard ACE DB | 0 | accdb | Microsoft Access 2007 Database |
| 00 01 00 00 53 74 61 6E 64 61 72 64 20 4A 65 74 20 44 42 | ␀␁␀␀Standard Jet DB | 0 | mdb | Microsoft Access Database |
| 01 FF 02 04 03 02 | ␁ÿ␂␄␃␂ | 0 | drw | Micrografx vector graphic file |
| 02 64 73 73 | ␂dss | 0 | dss | Digital Speech Standard (Olympus, Grundig, & Phillips) v2 |
| 03 64 73 73 | ␃dss | 0 | dss | Digital Speech Standard (Olympus, Grundig, & Phillips) v3 |
| 03 00 00 00 41 50 50 52 | ␃␀␀␀APPR | 0 | adx | Approach index file |
| 06 06 ED F5 D8 1D 46 E5 BD 31 EF E7 FE 74 B7 1D | ␆␆íõØ␝Få½1ïçþt·␝ | 0 | indd | Adobe InDesign document |
| 06 0E 2B 34 02 05 01 01 0D 01 02 01 01 02 | ␆␎+4␂␅␁␁␍␁␂␁␁␂ | 0-65535 (run-in) | mxf | Material Exchange Format file |
| 07 53 4B 46 | ␇SKF | 0 | skf | SkinCrafter skin file |
| 07 64 74 32 64 64 74 64 | ␇dt2ddtd | 0 | dtd | DesignTools 2D Design file |
| 0A 16 6F 72 67 2E 62 69 74 63 6F 69 6E 2E 70 72 | ␊␖org.bitcoin.pr | 0 | wallet | MultiBit Bitcoin wallet file |
| 0D 44 4F 43 | ␍DOC | 0 | doc | DeskMate Document file |
| 0E 4E 65 72 6F 49 53 4F | ␎NeroISO | 0 | nri | Nero CD Compilation |
| 0E 57 4B 53 | ␎WKS | 0 | wks | DeskMate Worksheet |
| 0F 53 49 42 45 4C 49 55 53 | ␏SIBELIUS | 0 | sib | Sibelius Music - Score file |
| 23 20 4D 69 63 72 6F 73 6F 66 74 20 44 65 76 65 6C 6F 70 65 72 20 53 74 75 64 69 6F | # Microsoft Developer Studio | 0 | dsp | Microsoft Developer Studio project file |
| 23 21 41 4D 52 | #!AMR | 0 | amr | Adaptive Multi-Rate ACELP (Algebraic Code Excited Linear Prediction) Codec, commonly audio format with GSM cell phones. |
| 23 21 53 49 4C 4B 0A | #!SILK␊ | 0 | sil | Audio compression format developed by Skype |
| 23 3F 52 41 44 49 41 4E 43 45 0A | #?RADIANCE␊ | 0 | hdr | Radiance High Dynamic Range image file |
| 23 40 7E 5E | #@~^ | 0 | vbe | VBScript Encoded script |
| 0D F0 1D C0 | ␍ð�À | 0 | cdb | MikroTik WinBox Connection Database (Address Book) |
| 23 45 58 54 4D 33 55 | #EXTM3U | 0 | m3u m3u8 | Multimedia playlist |
| 6D 64 66 00 | mdf␀ | 0 | m | M2 Archive, used by game developer M2 |
| 4B 50 4B 41 | KPKA | 0 | pak | Capcom RE Engine game data archives |
| 41 52 43 | ARC | 0 | arc | Capcom MT Framework game data archives |
| D0 4F 50 53 | ÐOPS | 0 | pl | Interleaf PrinterLeaf / WorldView document format (now Broadvision QuickSilver) |
| 6E 2B 31 00 | n+1 | 344 | nii | Single file NIfTI format, used extensively in biomedical imaging. |
| 6E 69 31 00 | ni1 | 344 | hdr | Header file of a .hdr/.img pair in NIfTI format, used extensively in biomedical imaging. |
| 52 41 46 36 34 | RAF64 | 0 | | Report Builder file from Digital Metaphors |
| 56 49 53 33 | VIS3 | 0 | | Resource file Visionaire 3.x Engine |
| 4D 53 48 7C 42 53 48 7C | MSH| BSH| | 0 | hl7 | Health Level Seven (HL7) Standard for electronic data exchange |
| 70 77 72 64 61 74 61 | pwrdata | 0 | pwrdata | SAP Power Monitor (version 1.1.0 and higher) data file |
| 1a 08 | .. | 0 | arc | ARC archive file |
| 2d 2d 2d 2d 2d 42 45 47 49 4e 20 50 47 50 20 50 55 42 4c 49 43 20 4b 45 49 20 42 4c 4f 43 4b 2d 2d 2d 2d 2d | -----BEGIN PGP PUBLIC KEY BLOCK----- | 0 | asc | Armored PGP public key |
| 3a 42 61 73 65 20 | :Base | 0 | cnt | Windows 3.x - Windows 95 Help Contents |
| 52 49 46 46 ?? ?? ?? ?? 56 44 52 4d | RIFF????VDRM | 0 | vdr | VirtualDub |
| 52 59 46 46 ?? ?? ?? ?? 54 52 49 44 | RIFF????TRID | 0 | trd | TrID |
| 52 49 46 46 ?? ?? ?? ?? 73 68 77 34 | RIFF????shw4 | 0 | shw | Corel SHOW! 4.0 |
| 52 49 46 46 ?? ?? ?? ?? 73 68 77 35 | RIFF????shw5 | 0 | shw | Corel SHOW! 5.0 |
| 52 49 46 46 ?? ?? ?? ?? 73 68 72 35 | RIFF????shr5 | 0 | shr | Corel SHOW! 5.0 player |
| 52 49 46 46 ?? ?? ?? ?? 73 68 62 35 | RIFF????shb5 | 0 | shb | Corel SHOW! 5.0 background |
| 52 49 46 46 ?? ?? ?? ?? 52 4d 4d 50 | RIFF????RMMP | 0 | mmm | MacroMind Multimedia Movie or Microsoft Multimedia Movie |
| 41 53 54 4d 2d 45 35 37 | ASTM-E57 | 0 | e57 | ASTM E57 3D file format |
| aa aa aa aa | ªªªª | 0 | sys | Crowdstrike Channel File |
| 8C 0A 00 | Œ.. | 0 | ucas | Unreal Engine Compressed Asset Storage file |
| 2D 3D 3D 2D 2D 3D 3D 2D 2D 3D 3D 2D 2D 3D 3D 2D | -==--==--==--==- | 0 | utoc | Unreal Engine Table of Contents file |
| 43 36 34 46 69 6C 65 00 | C64File | 0 | P00 (P01, P02,...) | Commodore 64 binary file (source: *.P00 format for Power64 emulator) |
| 44 55 43 4B | DUCK | 8 | | DuckDB database file (source: Source code) |