| HEX | ISO 8859-1 | Offset | Extension | Description | |
| -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------- | ------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --- |
| `23 21` | `#!` | 0 | | Script or data to be passed to the program following the [shebang](https://en.wikipedia.org/wiki/Shebang_(Unix) "Shebang (Unix)") (#!)[1](1)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-1) | |
| `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 <br>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](https://en.wikipedia.org/wiki/Endianness#Little-endian "Endianness")) <br>`00 00 4D 4D 58 50 52` ([big-endian](https://en.wikipedia.org/wiki/Endianness#Big-endian "Endianness")) | `␀␀IIXPR` <br>`␀␀MMXPR` | 0 | qxd | Quark Express document | |
| `50 57 53 33` | `PWS3` | 0 | psafe3 | Password Gorilla Password Database | |
| `D4 C3 B2 A1` ([little-endian](https://en.wikipedia.org/wiki/Endianness#Little-endian "Endianness")) | `Ôò¡` | 0 | pcap | Libpcap File Format[2](2)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-Libpcap_File_Format-2) | |
| `A1 B2 C3 D4` ([big-endian](https://en.wikipedia.org/wiki/Endianness#Big-endian "Endianness")) | `¡²ÃÔ` | | | | |
| `4D 3C B2 A1` (little-endian) | `M<²¡` | 0 | pcap | Libpcap File Format (nanosecond-resolution)[2](2)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-Libpcap_File_Format-2) | |
| `A1 B2 3C 4D` (big-endian) | `¡²<M` | | | | |
| `0A 0D 0D 0A` | `␊␍␍␊` | 0 | pcapng | PCAP Next Generation Dump File Format[3](3)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-3) | |
| `ED AB EE DB` | `í«îÛ` | 0 | rpm | RedHat Package Manager (RPM) package[4](4)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-4) | |
| `53 51 4C 69 74 65 20 66 6F 72 6D 61 74 20 33 00` | `SQLite format 3␀` | 0 | sqlitedb <br>sqlite <br>db | SQLite Database[5](5)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-5) | |
| `53 50 30 31` | `SP01` | 0 | bin | Amazon Kindle Update Package[6](6)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-6) | |
| `49 57 41 44` | `IWAD` | 0 | wad | internal WAD (main resource file of [Doom](https://en.wikipedia.org/wiki/Doom_(franchise) "Doom (franchise)"))[7](7)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-IWAD-7) | |
| `00` | `␀` | 0 | PIC <br>PIF <br>SEA <br>YTR | IBM Storyboard bitmap file <br>Windows [Program Information File](https://en.wikipedia.org/wiki/Program_information_file "Program information file") <br>Mac [Stuffit](https://en.wikipedia.org/wiki/StuffIt "StuffIt") Self-Extracting Archive <br>IRIS [OCR](https://en.wikipedia.org/wiki/Optical_character_recognition "Optical character recognition") 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](https://en.wikipedia.org/wiki/PalmPilot "PalmPilot") Database/Document File | |
| `BE BA FE CA` | `¾ºþÊ` | 0 | DBA | [Palm](https://en.wikipedia.org/wiki/Palm_(PDA) "Palm (PDA)") 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](https://en.wikipedia.org/wiki/Microsoft_Access "Microsoft Access") format) | |
| `00 00 01 00` | `␀␀␁␀` | 0 | ico | [Computer icon](https://en.wikipedia.org/wiki/Computer_icon "Computer icon") encoded in [ICO file format](https://en.wikipedia.org/wiki/ICO_(file_format) "ICO (file format)")[8](8)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-8) | |
| `69 63 6e 73` | `icns` | 0 | icns | [Apple Icon Image format](https://en.wikipedia.org/wiki/Apple_Icon_Image_format "Apple Icon Image format") | |
| `66 74 79 70 33 67` | `ftyp3g` | 4 | 3gp <br>3g2 | 3rd Generation Partnership Project [3GPP](https://en.wikipedia.org/wiki/3GPP "3GPP") and [3GPP2](https://en.wikipedia.org/wiki/3GPP2 "3GPP2") multimedia files | |
| `66 74 79 70 68 65 69 6``66 74 79 70 6d` | `ftypheic` | 4 | heic | High Efficiency Image Container (HEIC) | |
| `1F 9D` | `␟□` | 0 | z <br>tar.z | compressed file (often [tar](https://en.wikipedia.org/wiki/Tar_(file_format) "Tar (file format)") zip) using [Lempel-Ziv-Welch](https://en.wikipedia.org/wiki/Lempel-Ziv-Welch "Lempel-Ziv-Welch") algorithm | |
| `1F A0` | `␟⍽` | 0 | z <br>tar.z | Compressed file (often tar zip) using [LZH](https://en.wikipedia.org/wiki/LHA_(file_format) "LHA (file format)") algorithm | |
| `2D 68 6C 30 2D` | `-lh0-` | 2 | lzh | [Lempel Ziv Huffman archive file](https://en.wikipedia.org/wiki/LHA_(file_format) "LHA (file format)") Method 0 (No compression) | |
| `2D 68 6C 35 2D` | `-lh5-` | 2 | lzh | [Lempel Ziv Huffman archive file](https://en.wikipedia.org/wiki/LHA_(file_format) "LHA (file format)") Method 5 (8KiB sliding window) | |
| `42 41 43 4B 4D 49 4B 45 44 49 53 4B` | `BACKMIKEDISK` | 0 | bac | [AmiBack](https://en.wikipedia.org/w/index.php?title=AmiBack&action=edit&redlink=1 "AmiBack (page does not exist)") [Amiga](https://en.wikipedia.org/wiki/Amiga "Amiga") [Backup](https://en.wikipedia.org/wiki/Backup "Backup") data file | |
| `49 4E 44 58` | `INDX` | 0 | idx | [AmiBack](https://en.wikipedia.org/w/index.php?title=AmiBack&action=edit&redlink=1 "AmiBack (page does not exist)") [Amiga](https://en.wikipedia.org/wiki/Amiga "Amiga") [Backup](https://en.wikipedia.org/wiki/Backup "Backup") index file | |
| `62 70 6C 69 73 74` | `bplist` | 0 | plist | Binary [Property List](https://en.wikipedia.org/wiki/Property_List "Property List") file | |
| `42 5A 68` | `BZh` | 0 | bz2 | Compressed file using [Bzip2](https://en.wikipedia.org/wiki/Bzip2 "Bzip2") algorithm | |
| `47 49 46 38 37 61` <br>`47 49 46 38 39 61` | `GIF87a` <br>`GIF89a` | 0 | gif | Image file encoded in the [Graphics Interchange Format](https://en.wikipedia.org/wiki/Graphics_Interchange_Format "Graphics Interchange Format") (GIF)[9](9)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-9) | |
| `49 49 2A 00` (little-endian) | `II*␀` | 0 | tif <br>tiff | [Tagged Image File Format](https://en.wikipedia.org/wiki/Tagged_Image_File_Format "Tagged Image File Format") (TIFF)[10](10)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-10) | |
| `4D 4D 00 2A` (big-endian) | `MM␀*` | | | | |
| `49 49 2A 00 10 00 00 00 43 52` | `II*␀␐␀␀␀CR` | 0 | cr2 | Canon RAW Format Version 2[11](11)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-11) <br>Canon's RAW format is based on TIFF.[12](12)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-12) | |
| `80 2A 5F D7` | `€*_×` | 0 | cin | [Kodak](https://en.wikipedia.org/wiki/Eastman_Kodak "Eastman Kodak") [Cineon image](https://en.wikipedia.org/wiki/Cineon#Cineon_file_format "Cineon") | |
| `52 4E 43 01` <br>`52 4E 43 02` | `RNC␁` <br>`RNC␂` | 0 | | Compressed file using Rob Northen Compression (version 1 and 2) algorithm[13](13)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-13) | |
| `4E 55 52 55 49 4D 47` <br>`4E 55 52 55 50 41 4C` | `NURUIMG` <br>`NURUPAL` | 0 | nui <br>nup | nuru ASCII/ANSI image and palette files[14](14)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-14) | |
| `53 44 50 58` ([big-endian](https://en.wikipedia.org/wiki/Endianness#Big-endian "Endianness") format) | `SDPX` | 0 | dpx | [SMPTE](https://en.wikipedia.org/wiki/SMPTE "SMPTE") [DPX image](https://en.wikipedia.org/wiki/Digital_Picture_Exchange "Digital Picture Exchange") | |
| `58 50 44 53` ([little-endian](https://en.wikipedia.org/wiki/Endianness#Little-endian "Endianness") format) | `XPDS` | | | | |
| `76 2F 31 01` | `v/1␁` | 0 | exr | [OpenEXR image](https://en.wikipedia.org/wiki/OpenEXR "OpenEXR") | |
| `42 50 47 FB` | `BPGû` | 0 | bpg | [Better Portable Graphics](https://en.wikipedia.org/wiki/Better_Portable_Graphics "Better Portable Graphics") format[15](15)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-15) | |
| `FF D8 FF DB` | `ÿØÿÛ` | 0 | jpg <br>jpeg | [JPEG](https://en.wikipedia.org/wiki/JPEG "JPEG") raw or in the [JFIF](https://en.wikipedia.org/wiki/JFIF "JFIF") or [Exif](https://en.wikipedia.org/wiki/Exif "Exif") file format[16](16)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-:0-16) | |
| `FF D8 FF E0 00 10 4A 46 49 46 00 01` | `ÿØÿà␀␐JFIF␀␁` | | | | |
| `FF D8 FF EE` | `ÿØÿî` | | | | |
| `FF D8 FF E1 ?? ?? 45 78 69 66 00 00` | `ÿØÿá??Exif␀␀` | | | | |
| `FF D8 FF E0` | `ÿØÿà` | 0 | jpg | [JPEG](https://en.wikipedia.org/wiki/JPEG "JPEG") raw or in the [JFIF](https://en.wikipedia.org/wiki/JFIF "JFIF") or [Exif](https://en.wikipedia.org/wiki/Exif "Exif") file format[16](16)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-:0-16) | |
| `00 00 00 0C 6A 50 20 20 0D 0A 87 0A` | `␀␀␀␌jP␠␠␍␊‡␊` | 0 | jp2 <br>j2k <br>jpf <br>jpm <br>jpg2 <br>j2c <br>jpc <br>jpx <br>mj2 | [JPEG 2000](https://en.wikipedia.org/wiki/JPEG_2000 "JPEG 2000") format[17](17)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-17) | |
| `FF 4F FF 51` | `ÿOÿQ` | | | | |
| `71 6f 69 66` | `qoif` | 0 | qoi | QOI - The “Quite OK Image Format”[18](18)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-18) | |
| `46 4F 52 4D ?? ?? ?? ?? 49 4C 42 4D` | `FORM????ILBM` | 0 <br>any | ilbm <br>lbm <br>ibm <br>iff | [IFF](https://en.wikipedia.org/wiki/Interchange_File_Format "Interchange File Format") [Interleaved Bitmap Image](https://en.wikipedia.org/wiki/ILBM "ILBM") | |
| `46 4F 52 4D ?? ?? ?? ?? 38 53 56 58` | `FORM????8SVX` | 0 <br>any | 8svx <br>8sv <br>svx <br>snd <br>iff | [IFF](https://en.wikipedia.org/wiki/Interchange_File_Format "Interchange File Format") [8-Bit Sampled Voice](https://en.wikipedia.org/wiki/8SVX "8SVX") | |
| `46 4F 52 4D ?? ?? ?? ?? 41 43 42 4D` | `FORM????ACBM` | 0 <br>any | acbm <br>iff | [Amiga Contiguous Bitmap](https://en.wikipedia.org/w/index.php?title=Amiga_Contiguous_Bitmap&action=edit&redlink=1 "Amiga Contiguous Bitmap (page does not exist)") | |
| `46 4F 52 4D ?? ?? ?? ?? 41 4E 42 4D` | `FORM????ANBM` | 0 <br>any | anbm <br>iff | [IFF](https://en.wikipedia.org/wiki/Interchange_File_Format "Interchange File Format") [Animated Bitmap](https://en.wikipedia.org/w/index.php?title=IFF_Animated_Bitmap&action=edit&redlink=1 "IFF Animated Bitmap (page does not exist)") | |
| `46 4F 52 4D ?? ?? ?? ?? 41 4E 49 4D` | `FORM????ANIM` | 0 <br>any | anim <br>iff | [IFF](https://en.wikipedia.org/wiki/Interchange_File_Format "Interchange File Format") [CEL Animation](https://en.wikipedia.org/w/index.php?title=IFF_CEL_Animation&action=edit&redlink=1 "IFF CEL Animation (page does not exist)") | |
| `46 4F 52 4D ?? ?? ?? ?? 46 41 58 58` | `FORM????FAXX` | 0 <br>any | faxx <br>fax <br>iff | [IFF](https://en.wikipedia.org/wiki/Interchange_File_Format "Interchange File Format") [Facsimile Image](https://en.wikipedia.org/wiki/Fax "Fax") | |
| `46 4F 52 4D ?? ?? ?? ?? 46 54 58 54` | `FORM????FTXT` | 0 <br>any | ftxt <br>iff | [IFF](https://en.wikipedia.org/wiki/Interchange_File_Format "Interchange File Format") [Formatted Text](https://en.wikipedia.org/wiki/Formatted_text "Formatted text") | |
| `46 4F 52 4D ?? ?? ?? ?? 53 4D 55 53` | `FORM????SMUS` | 0 <br>any | smus <br>smu <br>mus <br>iff | [IFF](https://en.wikipedia.org/wiki/Interchange_File_Format "Interchange File Format") [Simple Musical Score](https://en.wikipedia.org/w/index.php?title=IFF_Simple_Musical_Score&action=edit&redlink=1 "IFF Simple Musical Score (page does not exist)") | |
| `46 4F 52 4D ?? ?? ?? ?? 43 4D 55 53` | `FORM????CMUS` | 0 <br>any | cmus <br>mus <br>iff | [IFF](https://en.wikipedia.org/wiki/Interchange_File_Format "Interchange File Format") [Musical Score](https://en.wikipedia.org/w/index.php?title=IFF_Musical_Score&action=edit&redlink=1 "IFF Musical Score (page does not exist)") | |
| `46 4F 52 4D ?? ?? ?? ?? 59 55 56 4E` | `FORM????YUVN` | 0 <br>any | yuvn <br>yuv <br>iff | [IFF](https://en.wikipedia.org/wiki/Interchange_File_Format "Interchange File Format") [YUV Image](https://en.wikipedia.org/wiki/YUV "YUV") | |
| `46 4F 52 4D ?? ?? ?? ?? 46 41 4E 54` | `FORM????FANT` | 0 <br>any | iff | [Amiga](https://en.wikipedia.org/wiki/Amiga "Amiga") [Fantavision Movie](https://en.wikipedia.org/wiki/Fantavision "Fantavision") | |
| `46 4F 52 4D ?? ?? ?? ?? 41 49 46 46` | `FORM????AIFF` | 0 <br>any | aiff <br>aif <br>aifc <br>snd <br>iff | [Audio Interchange File Format](https://en.wikipedia.org/wiki/Audio_Interchange_File_Format "Audio Interchange File Format") | |
| `4C 5A 49 50` | `LZIP` | 0 | lz | [lzip](https://en.wikipedia.org/wiki/Lzip "Lzip") compressed file[19](19)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-19) | |
| `30 37 30 37 30 37` | `070707` | 0 | cpio | [cpio](https://en.wikipedia.org/wiki/Cpio "Cpio") archive file[20](20)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-Cpio_file_format-20) | |
| `4D 5A` | `MZ` | 0 | exe <br>dll <br>mui <br>sys <br>scr <br>cpl <br>ocx <br>ax <br>iec <br>ime <br>rs <br>tsp <br>fon <br>efi | [DOS MZ executable](https://en.wikipedia.org/wiki/DOS_MZ_executable "DOS MZ executable") and its descendants (including [NE](https://en.wikipedia.org/wiki/New_Executable "New Executable") and [PE](https://en.wikipedia.org/wiki/Portable_Executable "Portable Executable")) | |
| `5A 4D` | `ZM` | 0 | exe | [DOS ZM executable](https://en.wikipedia.org/wiki/DOS_ZM_executable "DOS ZM executable") and its descendants (rare) | |
| `50 4B 03 04` <br>`50 4B 05 06` (empty archive) <br>`50 4B 07 08` (spanned archive) | `PK␃␄` <br>`PK␅␆` <br>`PK␇␈` | 0 | zip <br>aar <br>apk <br>docx <br>epub <br>[ipa](https://en.wikipedia.org/wiki/.ipa ".ipa") <br>jar <br>kmz <br>[maff](https://en.wikipedia.org/wiki/Mozilla_Archive_Format "Mozilla Archive Format") <br>msix <br>odp <br>ods <br>odt <br>pk3 <br>pk4 <br>pptx <br>usdz <br>vsdx <br>xlsx <br>[xpi](https://en.wikipedia.org/wiki/XPInstall "XPInstall") | [zip file format](https://en.wikipedia.org/wiki/ZIP_(file_format) "ZIP (file format)") and formats based on it, such as [EPUB](https://en.wikipedia.org/wiki/EPUB "EPUB"), [JAR](https://en.wikipedia.org/wiki/JAR_(file_format) "JAR (file format)"), [ODF](https://en.wikipedia.org/wiki/OpenDocument "OpenDocument"), [OOXML](https://en.wikipedia.org/wiki/Office_Open_XML "Office Open XML") | |
| `52 61 72 21 1A 07 00` | `Rar!␚␇␀` | 0 | rar | [Roshal ARchive](https://en.wikipedia.org/wiki/RAR_(file_format) "RAR (file format)") compressed archive v1.50 onwards[21](21)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-21) | |
| `52 61 72 21 1A 07 01 00` | `Rar!␚␇␁␀` | 0 | rar | [Roshal ARchive](https://en.wikipedia.org/wiki/RAR_(file_format) "RAR (file format)") compressed archive v5.00 onwards[22](22)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-22) | |
| `7F 45 4C 46` | `␡ELF` | 0 | | [Executable and Linkable Format](https://en.wikipedia.org/wiki/Executable_and_Linkable_Format "Executable and Linkable Format") | |
| `89 50 4E 47 0D 0A 1A 0A` | `‰PNG␍␊␚␊` | 0 | png | Image encoded in the [Portable Network Graphics](https://en.wikipedia.org/wiki/Portable_Network_Graphics "Portable Network Graphics") format[23](23)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-23) | |
| `C9` | `É` | 0 | com | [CP/M 3](https://en.wikipedia.org/wiki/COM_file_(CP/M) "COM file (CP/M)") and higher with overlays[24](24)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-Elliott_CPM3_COM-24) | |
| `CA FE BA BE` | `Êþº¾` | 0 | class | [Java class file](https://en.wikipedia.org/wiki/Java_class_file "Java class file"), [Mach-O Fat Binary](https://en.wikipedia.org/wiki/Fat_binary#Apple "Fat binary") | |
| `EF BB BF` | `` | 0 | txt <br>_others_ | [UTF-8](https://en.wikipedia.org/wiki/UTF-8 "UTF-8") [byte order mark](https://en.wikipedia.org/wiki/Byte_order_mark "Byte order mark"), commonly seen in text files.[25](25)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-BOM-25)[26](26)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-XML-26)[27](27)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-SDL-27) | |
| `FF FE` | `ÿþ` | 0 | txt <br>_others_ | [UTF-16LE](https://en.wikipedia.org/wiki/UTF-16LE "UTF-16LE") byte order mark, commonly seen in text files.[25](25)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-BOM-25)[26](26)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-XML-26)[27](27)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-SDL-27) | |
| `FE FF` | `þÿ` | 0 | txt <br>_others_ | [UTF-16BE](https://en.wikipedia.org/wiki/UTF-16BE "UTF-16BE") byte order mark, commonly seen in text files.[25](25)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-BOM-25)[26](26)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-XML-26)[27](27)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-SDL-27) | |
| `FF FE 00 00` | `ÿþ␀␀` | 0 | txt <br>_others_ | [UTF-32LE](https://en.wikipedia.org/wiki/UTF-32LE "UTF-32LE") byte order mark for text[25](25)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-BOM-25)[27](27)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-SDL-27) | |
| `00 00 FE FF` | `␀␀þÿ` | 0 | txt <br>_others_ | [UTF-32BE](https://en.wikipedia.org/wiki/UTF-32BE "UTF-32BE") byte order mark for text[25](25)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-BOM-25)[27](27)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-SDL-27) | |
| `2B 2F 76 38` <br>`2B 2F 76 39` <br>`2B 2F 76 2B` <br>`2B 2F 76 2F` | `+/v8` <br>`+/v9` <br>`+/v+` <br>`+/v/` | 0 | | [UTF-7](https://en.wikipedia.org/wiki/UTF-7 "UTF-7") byte order mark for text[28](28)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-BG-28)[27](27)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-SDL-27) | |
| `0E FE FF` | `␎þÿ` | 0 | txt <br>_others_ | [SCSU](https://en.wikipedia.org/wiki/Standard_Compression_Scheme_for_Unicode "Standard Compression Scheme for Unicode") byte order mark for text[28](28)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-BG-28)[27](27)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-SDL-27) | |
| `DD 73 66 73` | `Ýsfs` | 0 | | [UTF-EBCDIC](https://en.wikipedia.org/wiki/UTF-EBCDIC "UTF-EBCDIC") byte order mark for text[28](28)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-BG-28)[27](27)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-SDL-27) | |
| `FE ED FA CE` | `þíúÎ` | 0 <br>0x1000 | | [Mach-O](https://en.wikipedia.org/wiki/Mach-O "Mach-O") binary (32-bit) | |
| `FE ED FA CF` | `þíúÏ` | 0 <br>0x1000 | | Mach-O binary (64-bit) | |
| `FE ED FE ED` | `þíþí` | 0 | | JKS Javakey Store[29](29)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-29) | |
| `CE FA ED FE` | `Îúíþ` | 0 | | Mach-O binary (reverse byte ordering scheme, 32-bit)[30](30)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-apple.com-30) | |
| `CF FA ED FE` | `Ïúíþ` | 0 | | Mach-O binary (reverse byte ordering scheme, 64-bit)[30](30)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-apple.com-30) | |
| `25 21 50 53` | `%!PS` | 0 | ps | [PostScript document](https://en.wikipedia.org/wiki/PostScript "PostScript") | |
| `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 <br>epsf | [Encapsulated PostScript](https://en.wikipedia.org/wiki/Encapsulated_PostScript "Encapsulated PostScript") file version 3.0[31](31)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-Encapsulated_PostScript_(EPS)_File_Format,_Version_3.0-31) | |
| `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 <br>epsf | [Encapsulated PostScript](https://en.wikipedia.org/wiki/Encapsulated_PostScript "Encapsulated PostScript") file version 3.1[32](32)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-Encapsulated_PostScript_(EPS)_File_Format,_Version_3.1-32) | |
| `49 54 53 46 03 00 00 00 60 00 00 00` | ``ITSF␃␀␀␀`␀␀␀`` | 0 | chm | [MS Windows HtmlHelp Data](https://en.wikipedia.org/wiki/Microsoft_Compiled_HTML_Help "Microsoft Compiled HTML Help") | |
| `3F 5F` | `?_` | 0 | hlp | Windows 3.x/95/98 Help file | |
| `25 50 44 46 2D` | `%PDF-` | 0 | pdf | [PDF document](https://en.wikipedia.org/wiki/Portable_Document_Format "Portable Document Format")[33](33)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-33) | |
| `30 26 B2 75 8E 66 CF 11 A6 D9 00 AA 00 62 CE 6C` | `0&²uŽfÏ␑¦Ù␀ª␀bÎl` | 0 | asf <br>wma <br>wmv | [Advanced Systems Format](https://en.wikipedia.org/wiki/Advanced_Systems_Format "Advanced Systems Format")[34](34)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-34) | |
| `24 53 44 49 30 30 30 31` | `$SDI0001` | 0 | | [System Deployment Image](https://en.wikipedia.org/wiki/System_Deployment_Image "System Deployment Image"), a disk image format used by [Microsoft](https://en.wikipedia.org/wiki/Microsoft "Microsoft") | |
| `4F 67 67 53` | `OggS` | 0 | ogg <br>oga <br>ogv | [Ogg](https://en.wikipedia.org/wiki/Ogg "Ogg"), an [open source](https://en.wikipedia.org/wiki/Open-source_license "Open-source license") media container format | |
| `38 42 50 53` | `8BPS` | 0 | psd | Photoshop Document file, [Adobe Photoshop](https://en.wikipedia.org/wiki/Adobe_Photoshop "Adobe Photoshop")'s native file format | |
| `52 49 46 46 ?? ?? ?? ?? 57 41 56 45` | `RIFF????WAVE` | 0 | wav | [Waveform Audio File Format](https://en.wikipedia.org/wiki/Waveform_Audio_File_Format "Waveform Audio File Format")[35](35)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-35) | |
| `52 49 46 46 ?? ?? ?? ?? 41 56 49 20` | `RIFF????AVI␠` | 0 | avi | [Audio Video Interleave](https://en.wikipedia.org/wiki/Audio_Video_Interleave "Audio Video Interleave") video format[36](36)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-36) | |
| `FF FB` <br>`FF F3` <br>`FF F2` | `ÿû` <br>`ÿó` <br>`ÿò` | 0 | mp3 | [MPEG-1 Layer 3](https://en.wikipedia.org/wiki/MPEG-1_Layer_3 "MPEG-1 Layer 3") file without an [ID3](https://en.wikipedia.org/wiki/ID3 "ID3") tag or with an [ID3v](https://en.wikipedia.org/wiki/ID3 "ID3")1 tag (which is appended at the end of the file) | |
| `49 44 33` | `ID3` | 0 | mp3 | [MP3](https://en.wikipedia.org/wiki/MP3 "MP3") file with an ID3v2 container | |
| `42 4D` | `BM` | 0 | bmp <br>dib | [BMP](https://en.wikipedia.org/wiki/BMP_file_format "BMP file format") file, a [bitmap](https://en.wikipedia.org/wiki/Bitmap "Bitmap") format used mostly in the [Windows](https://en.wikipedia.org/wiki/Windows "Windows") world | |
| `43 44 30 30 31` | `CD001` | 0x8001 <br>0x8801 <br>0x9001 | iso | [ISO9660](https://en.wikipedia.org/wiki/ISO9660 "ISO9660") CD/DVD image file[37](37)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-37) | |
| `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](https://en.wikipedia.org/wiki/Game_%26_Watch "Game & Watch") image file | |
| `4E 45 53` | `NES` | 0 | nes | [Nintendo Entertainment System](https://en.wikipedia.org/wiki/Nintendo_Entertainment_System "Nintendo Entertainment System") image file | |
| `A0 32 41 A0 A0 A0` | `2A` | 0x165A4 | d64 | [Commodore 64](https://en.wikipedia.org/wiki/Commodore_64 "Commodore 64") 1541 disk image (D64 format) | |
| `47 53 52 2D 31 35 34 31` | `GCR-1541` | 0 | g64 | [Commodore 64](https://en.wikipedia.org/wiki/Commodore_64 "Commodore 64") 1541 disk image (G64 format) | |
| `A0 33 44 A0 A0` | `3D` | 0x61819 | d81 | [Commodore 64](https://en.wikipedia.org/wiki/Commodore_64 "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](https://en.wikipedia.org/wiki/Commodore_64 "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](https://en.wikipedia.org/wiki/Commodore_64 "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](https://en.wikipedia.org/wiki/FITS "FITS"))[38](38)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-38) | |
| `66 4C 61 43` | `fLaC` | 0 | flac | [Free Lossless Audio Codec](https://en.wikipedia.org/wiki/Free_Lossless_Audio_Codec "Free Lossless Audio Codec")[39](39)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-39) | |
| `4D 54 68 64` | `MThd` | 0 | mid <br>midi | [MIDI sound file](https://en.wikipedia.org/wiki/MIDI#Standard_MIDI_files "MIDI")[40](40)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-40) | |
| `D0 CF 11 E0 A1 B1 1A E1` | `ÐÏ␑ࡱ␚á` | 0 | doc <br>xls <br>ppt <br>msi <br>msg | [Compound File Binary Format](https://en.wikipedia.org/wiki/Compound_File_Binary_Format "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](https://en.wikipedia.org/wiki/Windows_Installer "Windows Installer") and for documents in older versions of [Microsoft Office](https://en.wikipedia.org/wiki/Microsoft_Office "Microsoft Office").[41](41)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-41) 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](https://en.wikipedia.org/wiki/Dalvik_(software) "Dalvik (software)") Executable | |
| `4B 44 4D` | `KDM` | 0 | vmdk | VMDK files[42](42)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-42)[43](43)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-43) | |
| `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](https://en.wikipedia.org/wiki/Google_Chrome "Google Chrome") extension[44](44)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-44) or packaged app[45](45)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-45) | |
| `41 47 44 33` | `AGD3` | 0 | fh8 | [FreeHand](https://en.wikipedia.org/wiki/Adobe_FreeHand "Adobe FreeHand") 8 document[46](46)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-46)[47](47)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-47) | |
| `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](https://en.wikipedia.org/wiki/AppleWorks "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](https://en.wikipedia.org/wiki/AppleWorks "AppleWorks") 6 document | |
| `45 52 02 00 00 00` | `ER␂␀␀␀` | 0 | toast | [Roxio Toast](https://en.wikipedia.org/wiki/Roxio_Toast "Roxio Toast") disc image file | |
| `8B 45 52 02 00 00 00` | `‹ER␂␀␀␀` | | | | |
| `6B 6F 6C 79` | `koly` | end–512 | dmg | [Apple Disk Image](https://en.wikipedia.org/wiki/Apple_Disk_Image "Apple Disk Image") file | |
| `78 61 72 21` | `xar!` | 0 | xar | [eXtensible ARchive](https://en.wikipedia.org/wiki/Xar_(archiver) "Xar (archiver)") format[48](48)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-48) | |
| `50 4D 4F 43 43 4D 4F 43` | `PMOCCMOC` | 0 | dat | Windows Files And Settings Transfer Repository[49](49)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-49) See also USMT 3.0 (Win XP)[50](50)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-50) and USMT 4.0 (Win 7)[51](51)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-51) User Guides | |
| `4E 45 53 1A` | `NES␚` | 0 | nes | Nintendo Entertainment System ROM file[52](52)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-52) | |
| `75 73 74 61 72 00 30 30` <br>`75 73 74 61 72 20 20 00` | `ustar␀00` <br>`ustar␠␠␀` | 257 | tar | [tar archive](https://en.wikipedia.org/wiki/Tar_(computing) "Tar (computing)")[53](53)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-53) | |
| `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[54](54)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-54) | |
| `4D 4C 56 49` | `MLVI` | 0 | MLV | [Magic Lantern](https://en.wikipedia.org/wiki/Magic_Lantern_(firmware) "Magic Lantern (firmware)") Video file[55](55)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-55) | |
| `44 43 4D 01 50 41 33 30` <br>`50 41 33 30` | `DCM␁PA30` <br>`PA30` | 0 | | Windows Update [Binary Delta Compression](https://en.wikipedia.org/wiki/Binary_delta_compression "Binary delta compression") file[56](56)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-56) | |
| `37 7A BC AF 27 1C` | `7z¼¯'␜` | 0 | 7z | 7-Zip File Format | |
| `1F 8B` | `␟‹` | 0 | gz <br>tar.gz | [GZIP](https://en.wikipedia.org/wiki/GZIP "GZIP") compressed file[57](57)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-57) | |
| `FD 37 7A 58 5A 00` | `ý7zXZ␀` | 0 | xz <br>tar.xz | [XZ](https://en.wikipedia.org/wiki/XZ_Utils "XZ Utils") compression utility <br>using [LZMA2](https://en.wikipedia.org/wiki/Lempel%E2%80%93Ziv%E2%80%93Markov_chain_algorithm "Lempel–Ziv–Markov chain algorithm") compression | |
| `04 22 4D 18` | `␄"M␘` | 0 | lz4 | [LZ4 Frame Format](https://en.wikipedia.org/wiki/LZ4_(compression_algorithm) "LZ4 (compression algorithm)")[58](58)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-58) <br>Remark: LZ4 block format does not offer any magic bytes.[59](59)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-59) | |
| `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](https://en.wikipedia.org/wiki/Data_compression "Data compression") 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](https://en.wikipedia.org/wiki/Underscore "Underscore"), e.g. ‘Setup.exe’ becomes ‘Setup.ex_’. | |
| `46 4C 49 46` | `FLIF` | 0 | flif | [Free Lossless Image Format](https://en.wikipedia.org/wiki/Free_Lossless_Image_Format "Free Lossless Image Format") | |
| `1A 45 DF A3` | `␚Eߣ` | 0 | mkv <br>mka <br>mks <br>mk3d <br>webm | [Matroska](https://en.wikipedia.org/wiki/Matroska "Matroska") media container, including [WebM](https://en.wikipedia.org/wiki/WebM "WebM") | |
| `4D 49 4C 20` | `MIL␠` | 0 | stg | "SEAN : Session Analysis" Training file. Also used in compatible software "Rpw : [Rowperfect](https://en.wikipedia.org/wiki/Rowperfect "Rowperfect") for Windows" and "RP3W : ROWPERFECT3 for Windows". | |
| `41 54 26 54 46 4F 52 4D ?? ?? ?? ?? 44 4A 56` | `AT&TFORM????DJV` | 0 | djvu <br>djv | [DjVu](https://en.wikipedia.org/wiki/DjVu "DjVu") document <br>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 <br>pem | PEM encoded X.509 [certificate](https://en.wikipedia.org/wiki/Public_key_certificate "Public key 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 <br>pem | PEM encoded X.509 [Certificate Signing Request](https://en.wikipedia.org/wiki/Certificate_Signing_Request "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 <br>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 <br>pem | PEM encoded X.509 PKCS#1 [DSA](https://en.wikipedia.org/wiki/Digital_Signature_Algorithm "Digital Signature Algorithm") 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 <br>pem | PEM encoded X.509 PKCS#1 [RSA](https://en.wikipedia.org/wiki/RSA_(cryptosystem) "RSA (cryptosystem)") 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](https://en.wikipedia.org/wiki/PuTTY "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](https://en.wikipedia.org/wiki/PuTTY "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](https://en.wikipedia.org/wiki/OpenSSH "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](https://en.wikipedia.org/wiki/OpenSSH "OpenSSH") public key file | |
| `44 49 43 4D` | `DICM` | 128 | dcm | [DICOM Medical File Format](https://en.wikipedia.org/wiki/DICOM "DICOM") | |
| `77 4F 46 46` | `wOFF` | 0 | woff | WOFF File Format 1.0[60](60)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-60) | |
| `77 4F 46 32` | `wOF2` | 0 | woff2 | WOFF File Format 2.0[61](61)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-61) | |
| `3C 3F 78 6D 6C 20` | `<?xml␠` | 0 <br>after BOM | xml | [eXtensible Markup Language](https://en.wikipedia.org/wiki/XML "XML")[26](26)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-XML-26)[62](62)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-62) | |
| `3C 00 3F 00 78 00 6D 00 6C 00 20` | `<␀?␀x␀m␀l␀␠␀` | | | | |
| `00 3C 00 3F 00 78 00 6D 00 6C 00 20` | `␀<␀?␀x␀m␀l␀␠` | | | | |
| `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␀␀␀␠␀␀␀` | | | | |
| `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␀␀␀␠` | | | | |
| `4C 6F A7 94 93 40` | `Lo§”“@` | | | | |
| `00 61 73 6D` | `␀asm` | 0 | wasm | [WebAssembly](https://en.wikipedia.org/wiki/WebAssembly "WebAssembly") binary format[63](63)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-63) | |
| `CF 84 01` | `Ï„␁` | 0 | lep | [Lepton](https://en.wikipedia.org/w/index.php?title=Lepton_image_compression_format&action=edit&redlink=1 "Lepton image compression format (page does not exist)") compressed JPEG image[64](64)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-64) | |
| `43 57 53` | `CWS` | 0 | swf | [Adobe Flash](https://en.wikipedia.org/wiki/Adobe_Flash "Adobe Flash") .swf | |
| `46 57 53` | `FWS` | | | | |
| `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](https://developers.google.com/speed/webp/docs/riff_container#webp_file_header) | |
| `27 05 19 56` | `'␅␙V` | 0 | | U-Boot / uImage. [Das U-Boot](https://en.wikipedia.org/wiki/Das_U-Boot "Das U-Boot") Universal Boot Loader.[65](65)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-65) | |
| `7B 5C 72 74 66 31` | `{\rtf1` | 0 | rtf | Rich Text Format | |
| `54 41 50 45` | `TAPE` | 0 | | [Microsoft Tape Format](https://en.wikipedia.org/wiki/Microsoft_Tape_Format "Microsoft Tape Format") | |
| `47` | `G` | 0 <br>0xBC <br>0x178 <br>... <br>(every 188th byte) | ts <br>tsv <br>tsa <br>mpg <br>mpeg | MPEG Transport Stream (MPEG-2 Part 1)[66](66)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-66) | |
| `00 00 01 BA` | `␀␀␁º` | 0 | m2p <br>vob <br>mpg <br>mpeg | MPEG Program Stream (MPEG-1 Part 1 (essentially identical) and MPEG-2 Part 1) | |
| `00 00 01 B3` | `␀␀␁³` | 0 | mpg <br>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^` | Best speed (no preset dictionary) | | | |
| `78 9C` | `xœ` | Default Compression (no preset dictionary) | | | |
| `78 DA` | `xÚ` | Best Compression (no preset dictionary) | | | |
| `78 20` | `x␠` | No Compression (with preset dictionary) | | | |
| `78 7D` | `x}` | Best speed (with preset dictionary) | | | |
| `78 BB` | `x»` | Default Compression (with preset dictionary) | | | |
| `78 F9` | `xù` | 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.[67](67)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-67) | |
| `4F 52 43` | `ORC` | 0 | orc | [Apache ORC](https://en.wikipedia.org/wiki/Apache_ORC "Apache ORC") (Optimized Row Columnar) file format | |
| `4F 62 6A 01` | `Obj␁` | 0 | avro | [Apache Avro](https://en.wikipedia.org/wiki/Apache_Avro "Apache Avro") binary file format | |
| `53 45 51 36` | `SEQ6` | 0 | rc | [RCFile](https://en.wikipedia.org/wiki/RCFile "RCFile") columnar file format | |
| `3C 72 6F 62 6C 6F 78 21` | `<roblox!` | 0 | rbxl | Roblox place file [68](68)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-68) | |
| `65 87 78 56` | `e‡xV` | 0 | p25 <br>obt | PhotoCap Object Templates | |
| `55 55 AA AA` | `UUªª` | 0 | pcv | PhotoCap Vector | |
| `78 56 34` | `xV4` | 0 | pbt <br>pdt <br>pea <br>peb <br>pet <br>pgt <br>pict <br>pjt <br>pkt <br>pmt | PhotoCap Template | |
| `50 41 52 31` | `PAR1` | 0 | | [Apache Parquet](https://en.wikipedia.org/wiki/Apache_Parquet "Apache Parquet") columnar file format | |
| `45 4D 58 32` | `EMX2` | 0 | ez2 | [Emulator Emaxsynth](https://en.wikipedia.org/wiki/E-mu_Emax "E-mu Emax") samples | |
| `45 4D 55 33` | `EMU3` | 0 | ez3 <br>iso | [Emulator III](https://en.wikipedia.org/wiki/E-mu_Emulator#The_Emulator_III "E-mu Emulator") synth samples | |
| `1B 4C 75 61` | `␛Lua` | 0 | luac | [Lua](https://en.wikipedia.org/wiki/Lua_(programming_language) "Lua (programming language)") [bytecode](https://en.wikipedia.org/wiki/Bytecode "Bytecode")[69](69)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-69) | |
| `62 6F 6F 6B 00 00 00 00 6D 61 72 6B 00 00 00 00` | `book␀␀␀␀mark␀␀␀␀` | 0 | alias | macOS file Alias[70](70)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-70) ([Symbolic link](https://en.wikipedia.org/wiki/Symbolic_link "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[71](71)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-71)[72](72)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-72) | |
| `52 65 63 65 69 76 65 64 3A` | `Received:` | 0 | eml | Email Message var5[_[citation needed](https://en.wikipedia.org/wiki/Wikipedia:Citation_needed "Wikipedia:Citation needed")_] | |
| `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 [73](73)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-73) | |
| `28 B5 2F FD` | `(µ/ý` | 0 | zst | [Zstandard](https://en.wikipedia.org/wiki/Zstandard "Zstandard") compress[74](74)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-74)[75](75)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-75) | |
| `52 53 56 4B 44 41 54 41` | `RSVKDATA` | 0 | rs | QuickZip rs compressed archive[76](76)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-76)[77](77)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-77) | |
| `3A 29 0A` | `:)␊` | 0 | sml | [Smile](https://en.wikipedia.org/wiki/Smile_(data_interchange_format) "Smile (data interchange format)") file | |
| `4A 6F 79 21` | `Joy!` | 0 | | [Preferred Executable Format](https://en.wikipedia.org/wiki/Preferred_Executable_Format "Preferred Executable Format") | |
| `31 0A 30 30` | `1␊00` | 0 | srt | [SubRip](https://en.wikipedia.org/wiki/SubRip "SubRip") File | |
| `34 12 AA 55` | `4␒ªU` | 0 | vpk | VPK file, used to store game data for some [Source Engine](https://en.wikipedia.org/wiki/Source_Engine "Source Engine") games | |
| `2A 2A 41 43 45 2A 2A` | `**ACE**` | 7 | ace | [ACE (compressed file format)](https://en.wikipedia.org/wiki/ACE_(compressed_file_format) "ACE (compressed file format)")[_[citation needed](https://en.wikipedia.org/wiki/Wikipedia:Citation_needed "Wikipedia:Citation needed")_] | |
| `60 EA` | `` `ê `` | 0 | arj | [ARJ](https://en.wikipedia.org/wiki/ARJ "ARJ") | |
| `49 53 63 28` | `ISc(` | 0 | cab | [InstallShield](https://en.wikipedia.org/wiki/InstallShield "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)](https://en.wikipedia.org/wiki/Zoo_(file_format) "Zoo (file format)") | |
| `50 31 0A` | `P1␊` | 0 | pbm | [Portable bitmap](https://en.wikipedia.org/wiki/Portable_bitmap "Portable bitmap") ASCII | |
| `50 34 0A` | `P4␊` | 0 | pbm | [Portable bitmap](https://en.wikipedia.org/wiki/Portable_bitmap "Portable bitmap") binary | |
| `50 32 0A` | `P2␊` | 0 | pgm | [Portable Gray Map](https://en.wikipedia.org/wiki/Portable_Gray_Map "Portable Gray Map") ASCII | |
| `50 35 0A` | `P5␊` | 0 | pgm | [Portable Gray Map](https://en.wikipedia.org/wiki/Portable_Gray_Map "Portable Gray Map") binary | |
| `50 33 0A` | `P3␊` | 0 | ppm | [Portable Pixmap](https://en.wikipedia.org/wiki/Portable_Pixmap "Portable Pixmap") ASCII | |
| `50 36 0A` | `P6␊` | 0 | ppm | [Portable Pixmap](https://en.wikipedia.org/wiki/Portable_Pixmap "Portable Pixmap") binary | |
| `D7 CD C6 9A` | `×ÍÆš` | 0 | wmf | [Windows Metafile](https://en.wikipedia.org/wiki/Windows_Metafile "Windows Metafile") | |
| `67 69 6D 70 20 78 63 66` | `gimp xcf` | 0 | xcf | [XCF (file format)](https://en.wikipedia.org/wiki/XCF_(file_format) "XCF (file format)") | |
| `2F 2A 20 58 50 4D 20 2A 2F` | `/* XPM */` | 0 | xpm | [X PixMap](https://en.wikipedia.org/wiki/X_PixMap "X PixMap") | |
| `41 46 46` | `AFF` | 0 | aff | Advanced Forensics Format | |
| `45 56 46 32` | `EVF2` | 0 | Ex01 | [EnCase](https://en.wikipedia.org/wiki/EnCase "EnCase") EWF version 2 format | |
| `45 56 46` | `EVF` | 0 | e01 | [EnCase](https://en.wikipedia.org/wiki/EnCase "EnCase") EWF version 1 format | |
| `51 46 49` | `QFI` | 0 | qcow | [qcow](https://en.wikipedia.org/wiki/Qcow "Qcow") file format | |
| `52 49 46 46 ?? ?? ?? ?? 41 43 4F 4E` | `RIFF????ACON` | 0 | ani | [Animated cursor](https://en.wikipedia.org/wiki/Animated_cursor "Animated cursor") | |
| `52 49 46 46 ?? ?? ?? ?? 43 44 44 41` | `RIFF????CDDA` | 0 | cda | [.cda file](https://en.wikipedia.org/wiki/.cda_file ".cda file") | |
| `52 49 46 46 ?? ?? ?? ?? 51 4C 43 4D` | `RIFF????QLCM` | 0 | qcp | [Qualcomm PureVoice](https://en.wikipedia.org/wiki/Qualcomm_PureVoice "Qualcomm PureVoice") file format | |
| `52 49 46 58 ?? ?? ?? ?? 46 47 44 4D` (big-endian) | `RIFX????FGDM` | 0 | dcr | [Adobe Shockwave](https://en.wikipedia.org/wiki/Adobe_Shockwave "Adobe Shockwave")[78](78)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-78)[79](79)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-SW-79)[80](80)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-Exe2SW-80) | |
| `58 46 49 52 ?? ?? ?? ?? 4D 44 47 46` (little-endian) | `XFIR????MDGF` | | | | |
| `52 49 46 58 ?? ?? ?? ?? 4D 56 39 33` (big-endian) | `RIFX????MV93` | 0 | dir <br>dxr <br>drx | [Macromedia Director](https://en.wikipedia.org/wiki/Macromedia_Director "Macromedia Director") file format[81](81)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-81)[79](79)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-SW-79)[80](80)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-Exe2SW-80) | |
| `58 46 49 52 ?? ?? ?? ?? 33 39 56 4D` (little-endian) | `XFIR????39VM` | | | | |
| `46 4C 56` | `FLV` | 0 | flv | [Flash Video](https://en.wikipedia.org/wiki/Flash_Video "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](https://en.wikipedia.org/wiki/VirtualBox "VirtualBox") Virtual Hard Disk file format | |
| `63 6F 6E 6E 65 63 74 69 78` | `connectix` | 0 | vhd | [Windows Virtual PC](https://en.wikipedia.org/wiki/Windows_Virtual_PC "Windows Virtual PC") Virtual Hard Disk file format | |
| `76 68 64 78 66 69 6C 65` | `vhdxfile` | 0 | vhdx | [Windows Virtual PC](https://en.wikipedia.org/wiki/Windows_Virtual_PC "Windows Virtual PC") Windows 8 Virtual Hard Disk file format | |
| `49 73 5A 21` | `IsZ!` | 0 | isz | Compressed [ISO image](https://en.wikipedia.org/wiki/ISO_image "ISO image") | |
| `44 41 41` | `DAA` | 0 | daa | [Direct Access Archive](https://en.wikipedia.org/wiki/Direct_Access_Archive "Direct Access Archive") PowerISO | |
| `4C 66 4C 65` | `LfLe` | 0 | evt | Windows [Event Viewer](https://en.wikipedia.org/wiki/Event_Viewer "Event Viewer") file format | |
| `45 6C 66 46 69 6C 65` | `ElfFile` | 0 | evtx | Windows [Event Viewer](https://en.wikipedia.org/wiki/Event_Viewer "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](https://en.wikipedia.org/wiki/Program_Manager "Program Manager") Program Group file format | |
| `4B 43 4D 53` | `KCMS` | 0 | icm | [ICC profile](https://en.wikipedia.org/wiki/ICC_profile "ICC profile") | |
| `72 65 67 66` | `regf` | 0 | dat <br>hiv | [Windows Registry](https://en.wikipedia.org/wiki/Windows_Registry "Windows Registry") file | |
| `21 42 44 4E` | `!BDN` | 0 | pst | Microsoft Outlook [Personal Storage Table](https://en.wikipedia.org/wiki/Personal_Storage_Table "Personal Storage Table") file | |
| `44 52 41 43 4F` | `DRACO` | 0 | drc | 3D model compressed with Google Draco[82](82)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-82) | |
| `47 52 49 42` | `GRIB` | 0 | grib <br>grib2 | Gridded data (commonly weather observations or forecasts) in the [WMO](https://en.wikipedia.org/wiki/World_Meteorological_Organization "World Meteorological Organization") [GRIB](https://en.wikipedia.org/wiki/GRIB "GRIB") or [GRIB2](https://en.wikipedia.org/w/index.php?title=GRIB2&action=edit&redlink=1 "GRIB2 (page does not exist)") format[83](83)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-83) | |
| `42 4C 45 4E 44 45 52` | `BLENDER` | 0 | blend | Blender File Format[84](84)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-84) | |
| `00 00 00 0C 4A 58 4C 20 0D 0A 87 0A` | `␀␀␀␌JXL␠␍␊‡␊` | 0 | jxl | Image encoded in the [JPEG XL](https://en.wikipedia.org/wiki/JPEG_XL "JPEG XL") format[85](85)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-85) | |
| `FF 0A` | `ÿ␊` | | | | |
| `00 01 00 00 00` | `␀␁␀␀␀` | 0 | ttf <br>tte <br>dfont | [TrueType](https://en.wikipedia.org/wiki/TrueType "TrueType") font | |
| `4F 54 54 4F` | `OTTO` | 0 | otf | [OpenType](https://en.wikipedia.org/wiki/OpenType "OpenType") font[86](86)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-86) | |
| `23 25 4D 6F 64 75 6C 65` | `#%Module` | 0 | | Modulefile for [Environment Modules](https://en.wikipedia.org/wiki/Environment_Modules_(software) "Environment Modules (software)")[87](87)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-87) | |
| `4D 53 57 49 4D 00 00 00 D0 00 00 00 00` | `MSWIM␀␀␀Ð␀␀␀␀` | 0 | wim <br>swm <br>esd | [Windows Imaging Format](https://en.wikipedia.org/wiki/Windows_Imaging_Format "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[88](88)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-88) | |
| `AC ED` | `’` | 0 | | Serialized Java Data[89](89)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-89) | |
| `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](https://en.wikipedia.org/wiki/Creative_Voice_file "Creative Voice file") | |
| `2E 73 6E 64` | `.snd` | 0 | au <br>snd | [Au audio file format](https://en.wikipedia.org/wiki/Au_file_format "Au file format") | |
| `DB 0A CE 00` | | 0 | | OpenGL Iris Perfomer .PFB (Performer Fast Binary)[90](90)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-90) | |
| `48 5a 4c 52 00 00 00 18` | `HZLR` | 0 | hazelrules | Noodlesoft Hazel [91](91)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-91) | |
| `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[92](92)(https://en.wikipedia.org/wiki/List_of_file_signatures#cite_note-92) | |
| `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<br><br>m3u8 | [Multimedia playlist](https://en.wikipedia.org/wiki/M3U "M3U") | |
| `6D 64 66 00` | `mdf␀` | 0 | m | M2 Archive, used by game developer [M2](https://en.wikipedia.org/wiki/M2_(game_developer) "M2 (game developer)") | |
| `4B 50 4B 41` | `KPKA` | 0 | pak | [Capcom](https://en.wikipedia.org/wiki/Capcom "Capcom") [RE Engine](https://en.wikipedia.org/wiki/RE_Engine "RE Engine") game data archives | |
| `41 52 43` | `ARC` | 0 | arc | [Capcom](https://en.wikipedia.org/wiki/Capcom "Capcom") [MT Framework](https://en.wikipedia.org/wiki/MT_Framework "MT Framework") game data archives | |
| `D0 4F 50 53` | `ÐOPS` | 0 | pl | [Interleaf](https://en.wikipedia.org/wiki/Interleaf "Interleaf") PrinterLeaf / WorldView document format (now [Broadvision](https://en.wikipedia.org/wiki/Broadvision "Broadvision") QuickSilver) | |
| `6E 2B 31 00` | `n+1` | 344 | nii | Single file [NIfTI](https://en.wikipedia.org/wiki/Neuroimaging_Informatics_Technology_Initiative "Neuroimaging Informatics Technology Initiative") format, used extensively in biomedical imaging. | |
| `6E 69 31 00` | `ni1` | 344 | hdr | Header file of a .hdr/.img pair in [NIfTI](https://en.wikipedia.org/wiki/Neuroimaging_Informatics_Technology_Initiative "Neuroimaging Informatics Technology Initiative") format, used extensively in biomedical imaging. | |
| `52 41 46 36 34` | `RAF64` | 0 | | Report Builder file from [Digital Metaphors](https://www.digital-metaphors.com/) | |
| `56 49 53 33` | `VIS3` | 0 | | Resource file [Visionaire 3.x Engine](https://www.visionaire-studio.net/) | |
| `4D 53 48 7C` <br>`42 53 48 7C` | `MSH`\| <br>`BSH`\| | 0 | hl7 | Health Level Seven (HL7) Standard for electronic data exchange [1](1)(https://www.hl7.eu/HL7v2x/v25/std25/hl7.html) | |
| `70 77 72 64 61 74 61` | `pwrdata` | 0 | pwrdata | SAP [Power Monitor](https://github.com/SAP/power-monitoring-tool-for-macos) (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 | |
| `58 46 49 52 ?? ?? ?? ?? 4d 44 47 46` | `XFIR????MDGF` | 0 | dcr | Macromedia ShockWave | |
| `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 | |