format stringlengths 3 455 ⌀ | hex_signature stringlengths 2 116 | id stringlengths 5 85 | offset stringclasses 33
values | source stringclasses 1
value | source_quote stringlengths 11 552 | url stringlengths 57 137 | verified_fields listlengths 1 4 ⌀ | extension stringlengths 1 61 ⌀ |
|---|---|---|---|---|---|---|---|---|
BOBO | 0 00 00 00 01 | 0-00-00-00-01 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | ␆␇á␀BOBO ␆␇á␀␀␀␀␀ ␀␀␀␀␀␁ | | https://referencesource.org/file-format-signatures/0-00-00-00-01/ | [
"format"
] | null |
null | 00 00 02 00 06 04 06 00 08 00 00 00 00 00 | 00-00-02-00-06-04-06-00-08-00-00-00-00-00 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | 00 00 02 00 06 04 06 00 08 00 00 00 00 00 | ␀␀␂␀␆␄␆␀␈␀␀␀ | https://referencesource.org/file-format-signatures/00-00-02-00-06-04-06-00-08-00-00-00-00-00/ | [
"hex_signature"
] | null |
cpio | 30 37 30 37 30 31 | 070701-30-37-30-37-30-31 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | 070701 | 0 | cpio | <https://en.wikipedia.org/wiki/Cpio> cpio "new" ASCII archive file | https://referencesource.org/file-format-signatures/070701-30-37-30-37-30-31/ | [
"extension",
"format",
"offset"
] | 070701 |
cpio | 30 37 30 37 30 32 | 070702-30-37-30-37-30-32 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | 070702 | 0 | cpio | <https://en.wikipedia.org/wiki/Cpio> cpio ASCII archive file with crc | https://referencesource.org/file-format-signatures/070702-30-37-30-37-30-32/ | [
"extension",
"format",
"offset"
] | 070702 |
cpio | 30 37 30 37 30 37 | 070707-30-37-30-37-30-37 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | 070707 | 0 | cpio | <https://en.wikipedia.org/wiki/Cpio> cpio ASCII archive file [ 21 ] | https://referencesource.org/file-format-signatures/070707-30-37-30-37-30-37/ | [
"extension",
"format",
"offset"
] | 070707 |
Modulefile for Environment Modules | 23 25 4D 6F 64 75 6C 65 | 23-25-4d-6f-64-75-6c-65 | 23 | https://en.wikipedia.org/wiki/List_of_file_signatures | ps://en.wikipedia.org/wiki/OpenType> OpenType font [ 92 ] | 23 25 4D 6F 64 75 6C 65 | #%Module | 0 | | Modulefile for <https://en.wikipedia.org/wiki/Environment_Modules_(software)> Environment Modules [ 93 ] | 4D 53 57 49 4D 00 00 00 D0 00 00 00 00 | MSWIM␀␀␀Ð␀␀␀␀ | 0 | wim swm esd | <https://en.wikipedia.org/wiki/Wind... | https://referencesource.org/file-format-signatures/23-25-4d-6f-64-75-6c-65/ | [
"hex_signature",
"offset"
] | null |
-----BEGIN 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 | 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 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | -----BEGIN CERTIFICATE----- | 0 | | https://referencesource.org/file-format-signatures/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/ | [
"format",
"offset"
] | null |
<https://en.wikipedia.org/wiki/OpenSSH> OpenSSH private key file | 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 | 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 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | -----BEGIN OPENSSH PRIVATE KEY----- | 0 | | <https://en.wikipedia.org/wiki/OpenSSH> OpenSSH private key file | https://referencesource.org/file-format-signatures/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/ | [
"format",
"offset"
] | null |
3rd Generation Partnership Project 3GPP and 3GPP2 multimedia files | 66 74 79 70 33 67 | 3gp-3g2-66-74-79-70-33-67 | 4 | https://en.wikipedia.org/wiki/List_of_file_signatures | 3rd Generation Partnership Project <https://en.wikipedia.org/wiki/3GPP> 3GPP and <https://en.wikipedia.org/wiki/3GPP2> 3GPP2 multimedia files | https://referencesource.org/file-format-signatures/3gp-3g2-66-74-79-70-33-67/ | [
"format"
] | 3gp 3g2 |
bsdiff binary patch | 42 53 44 49 46 46 34 30 | 42-53-44-49-46-46-34-30 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | 42 53 44 49 46 46 34 30 | BSDIFF40 | 0 | | <https://en.wikipedia.org/wiki/Bsdiff> bsdiff binary patch | | https://referencesource.org/file-format-signatures/42-53-44-49-46-46-34-30/ | [
"format",
"hex_signature",
"offset"
] | null |
Windows Update Binary Delta Compression file | 44 43 4D 01 50 41 33 30 50 41 33 30 | 44-43-4d-01-50-41-33-30-50-41-33-30 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | DCM␁PA30 PA30 | 0 | | Windows Update <https://en.wikipedia.org/wiki/Binary_delta_compression> Binary Delta Compression file [ 60 ] | | https://referencesource.org/file-format-signatures/44-43-4d-01-50-41-33-30-50-41-33-30/ | [
"offset"
] | null |
ER␂␀␀␀ | 45 52 02 00 00 00 | 45-52-02-00-00-00 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | //en.wikipedia.org/wiki/AppleWorks> AppleWorks 6 document | 45 52 02 00 00 00 | ER␂␀␀␀ | 0 | 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 | <https://en.wikipedia.org/wiki/Apple_Disk_Image> Apple Disk Image file | 78... | https://referencesource.org/file-format-signatures/45-52-02-00-00-00/ | [
"format",
"hex_signature",
"offset"
] | null |
Preferred Executable Format | 4A 6F 79 21 | 4a-6f-79-21 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | <https://en.wikipedia.org/wiki/Preferred_Executable_Format> Preferred Executable Format | https://referencesource.org/file-format-signatures/4a-6f-79-21/ | [
"format"
] | null |
Compressed file using Rob Northen Compression (version 1 and 2) algorithm | 52 4E 43 01 52 4E 43 02 | 52-4e-43-01-52-4e-43-02 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | Compressed file using Rob Northen Compression (version 1 and 2) algorithm [ 14 ] | https://referencesource.org/file-format-signatures/52-4e-43-01-52-4e-43-02/ | [
"format"
] | null |
macOS bookmark format | 62 6F 6F 6B | 62-6f-6f-6b | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | macOS <https://mac-alias.readthedocs.io/en/latest/bookmark_fmt.html> bookmark format | https://referencesource.org/file-format-signatures/62-6f-6f-6b/ | null | null |
7-Zip File Format | 37 7a BC AF 27 1C | 7z-37-7a-bc-af-27-1c | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | 7z¼¯'␜ | 0 | 7z | 7-Zip File Format | | https://referencesource.org/file-format-signatures/7z-37-7a-bc-af-27-1c/ | [
"extension",
"format",
"offset"
] | 7z |
‹ER␂␀␀␀ | 8B 45 52 02 00 00 00 | 8b-45-52-02-00-00-00 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | kipedia.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 | <https://en.wikipedia.org/wiki/Apple_Disk_Image> Apple Disk Image file | 78 61 72 21 | xar! | 0 | xar | <https://en.wikipedia.org/wiki/Xar_(archiver)> eXtensible ARchive format [ 52 ] | 50 4... | https://referencesource.org/file-format-signatures/8b-45-52-02-00-00-00/ | [
"format",
"hex_signature",
"offset"
] | null |
IFF 8-Bit Sampled Voice | 46 4F 52 4D ?? ?? ?? ?? 8SVX | 8svx-8sv-svx-snd-iff-46-4f-52-4d-8svx | 0 any | https://en.wikipedia.org/wiki/List_of_file_signatures | <https://en.wikipedia.org/wiki/Interchange_File_Format> IFF <https://en.wikipedia.org/wiki/8SVX> 8-Bit Sampled Voice | https://referencesource.org/file-format-signatures/8svx-8sv-svx-snd-iff-46-4f-52-4d-8svx/ | null | 8svx 8sv svx snd iff |
Serialized Java Data | AC ED | ac-ed | AC | https://en.wikipedia.org/wiki/List_of_file_signatures | Serialized Java Data | https://referencesource.org/file-format-signatures/ac-ed/ | [
"format"
] | null |
Amiga Contiguous Bitmap | 46 4F 52 4D ?? ?? ?? ?? ACBM | acbmfiff-46-4f-52-4d-acbm | 0 any | https://en.wikipedia.org/wiki/List_of_file_signatures | <https://en.wikipedia.org/wiki/Amiga_Contiguous_Bitmap?action=edit&redlink=1> Amiga Contiguous Bitmap | https://referencesource.org/file-format-signatures/acbmfiff-46-4f-52-4d-acbm/ | [
"format"
] | acbmfiff |
ACE (compressed file format) | 2A 2A 41 43 45 2A 2A | ace-2a-2a-41-43-45-2a-2a | 7 | https://en.wikipedia.org/wiki/List_of_file_signatures | ACE (compressed file format) [ <https://en.wikipedia.org/wiki/Wikipedia:Citation_needed> citation needed ] | https://referencesource.org/file-format-signatures/ace-2a-2a-41-43-45-2a-2a/ | [
"extension",
"format"
] | ace |
Advanced Forensics Format | 41 46 46 | aff-41-46-46 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | aff | Advanced Forensics Format | https://referencesource.org/file-format-signatures/aff-41-46-46/ | [
"extension",
"format"
] | aff |
Audio Interchange File Format | 46 4F 52 4D ?? ?? ?? ?? 41 49 46 46 | aiff-46-4f-52-4d-41-49-46-46 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | FORM ???? AIFF | 0 any | aiff aif aifc snd iff | <https://en.wikipedia.org/wiki/Audio_Interchange_File_Format> Audio Interchange File Format | https://referencesource.org/file-format-signatures/aiff-46-4f-52-4d-41-49-46-46/ | [
"extension",
"format",
"offset"
] | aiff |
macOS file Alias | 62 6F 6F 6B 00 00 00 00 6D 61 72 6B 00 00 00 00 | alias-62-6f-6f-6b-00-00-00-00-6d-61-72-6b-00-00-00-00 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | macOS file Alias [ 75 ] ( <https://en.wikipedia.org/wiki/Symbolic_link> Symbolic link ) | https://referencesource.org/file-format-signatures/alias-62-6f-6f-6b-00-00-00-00-6d-61-72-6b-00-00-00-00/ | [
"extension",
"format"
] | alias |
IFF Animated Bitmap | 46 4F 52 4D ?? ?? ?? ?? ANBM | anbm-iff-46-4f-52-4d-anbm | 0 any | https://en.wikipedia.org/wiki/List_of_file_signatures | <https://en.wikipedia.org/wiki/Interchange_File_Format> IFF <https://en.wikipedia.org/wiki/IFF_Animated_Bitmap?action=edit&redlink=1> Animated Bitmap | https://referencesource.org/file-format-signatures/anbm-iff-46-4f-52-4d-anbm/ | [
"format"
] | anbm iff |
Animated cursor | 52 49 46 46 ?? ?? ?? ?? 41 43 4F 4E | ani-52-49-46-46-41-43-4f-4e | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | ani | <https://en.wikipedia.org/wiki/Animated_cursor> Animated cursor | https://referencesource.org/file-format-signatures/ani-52-49-46-46-41-43-4f-4e/ | [
"extension",
"format"
] | ani |
IFF CEL Animation | 46 4F 52 4D ?? ?? ?? ?? ANIM | anim-iff-46-4f-52-4d-anim | 0 any | https://en.wikipedia.org/wiki/List_of_file_signatures | <https://en.wikipedia.org/wiki/Interchange_File_Format> IFF <https://en.wikipedia.org/wiki/IFF_CEL_Animation?action=edit&redlink=1> CEL Animation | https://referencesource.org/file-format-signatures/anim-iff-46-4f-52-4d-anim/ | [
"format"
] | anim iff |
ARJ | 60 EA | arj-60-ea | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | <https://en.wikipedia.org/wiki/ARJ> ARJ | https://referencesource.org/file-format-signatures/arj-60-ea/ | [
"extension",
"format"
] | arj |
Advanced Systems Format | 30 26 B2 75 8E 66 CF 11 A6 D9 00 AA 00 62 CE 6C | asf-wma-wmv-30-26-b2-75-8e-66-cf-11-a6-d9-00-aa-00-62-ce-6c | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | Advanced Systems Format [ 37 ] | https://referencesource.org/file-format-signatures/asf-wma-wmv-30-26-b2-75-8e-66-cf-11-a6-d9-00-aa-00-62-ce-6c/ | [
"format"
] | asf wma wmv |
Au audio file format | 2E 73 6E 64 | au-snd-2e-73-6e-64 | 2E | https://en.wikipedia.org/wiki/List_of_file_signatures | Au audio file format | https://referencesource.org/file-format-signatures/au-snd-2e-73-6e-64/ | [
"format"
] | au snd |
Apache Avro binary file format | 4F 62 6A 01 | avro-4f-62-6a-01 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | <https://en.wikipedia.org/wiki/Apache_Avro> Apache Avro binary file format | https://referencesource.org/file-format-signatures/avro-4f-62-6a-01/ | [
"extension",
"format"
] | avro |
AmiBack Amiga Backup data file | 42 41 43 4B 4D 49 4B 45 44 49 53 4B | bac-42-41-43-4b-4d-49-4b-45-44-49-53-4b | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | <https://en.wikipedia.org/wiki/AmiBack?action=edit&redlink=1> AmiBack <https://en.wikipedia.org/wiki/Amiga> Amiga <https://en.wikipedia.org/wiki/Backup> Backup data file | https://referencesource.org/file-format-signatures/bac-42-41-43-4b-4d-49-4b-45-44-49-53-4b/ | null | bac |
Blender File Format | 42 4C 45 4E 44 45 52 | blend-42-4c-45-4e-44-45-52 | 42 | https://en.wikipedia.org/wiki/List_of_file_signatures | Blender File Format | https://referencesource.org/file-format-signatures/blend-42-4c-45-4e-44-45-52/ | [
"format"
] | blend |
Better Portable Graphics format | 42 50 47 FB | bpg-42-50-47-fb | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | <https://en.wikipedia.org/wiki/Better_Portable_Graphics> Better Portable Graphics format [ 16 ] | https://referencesource.org/file-format-signatures/bpg-42-50-47-fb/ | [
"format"
] | bpg |
main.bs | 6D 61 69 6E 2E 62 73 | bs-6d-61-69-6e-2e-62-73 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | main.bs | 0 | mgw | Nintendo <https://en.wikipedia.org/wiki/Game_&_Watch> Game & Watch image file | https://referencesource.org/file-format-signatures/bs-6d-61-69-6e-2e-62-73/ | [
"extension",
"format",
"offset"
] | bs |
Compressed file using Bzip2 algorithm | 42 5A 68 | bz2-42-5a-68 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | Compressed file using <https://en.wikipedia.org/wiki/Bzip2> Bzip2 algorithm | https://referencesource.org/file-format-signatures/bz2-42-5a-68/ | null | bz2 |
InstallShield CAB Archive File | 49 53 63 28 | cab-49-53-63-28 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | cab | <https://en.wikipedia.org/wiki/InstallShield> InstallShield CAB Archive File | https://referencesource.org/file-format-signatures/cab-49-53-63-28/ | [
"extension",
"format"
] | cab |
Microsoft Cabinet file | 4D 53 43 46 | cab-4d-53-43-46 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | MSCF | 0 | cab | Microsoft Cabinet file | | https://referencesource.org/file-format-signatures/cab-4d-53-43-46/ | [
"extension",
"format",
"offset"
] | cab |
.cda file | 52 49 46 46 ?? ?? ?? ?? 43 44 44 41 | cda-52-49-46-46-43-44-44-41 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | cda | <https://en.wikipedia.org/wiki/.cda_file> .cda file | https://referencesource.org/file-format-signatures/cda-52-49-46-46-43-44-44-41/ | [
"extension",
"format"
] | cda |
CD-i CD image file | 43 44 30 30 31 | cdi-43-44-30-30-31 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | CD-i CD image file | https://referencesource.org/file-format-signatures/cdi-43-44-30-30-31/ | [
"format"
] | cdi |
MS Windows HtmlHelp Data | 49 54 53 46 03 00 00 00 60 00 00 00 | chm-49-54-53-46-03-00-00-00-60-00-00-00 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | MS Windows HtmlHelp Data | https://referencesource.org/file-format-signatures/chm-49-54-53-46-03-00-00-00-60-00-00-00/ | [
"format"
] | chm |
Kodak Cineon image | 80 2A 5F D7 | cin-80-2a-5f-d7 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | <https://en.wikipedia.org/wiki/Eastman_Kodak> Kodak <https://en.wikipedia.org/wiki/Cineon#Cineon_file_format> Cineon image | https://referencesource.org/file-format-signatures/cin-80-2a-5f-d7/ | null | cin |
<https://en.wikipedia.org/wiki/Java_class_file> Java class file , <https://en.wikipedia.org/wiki/Fat_binary#Apple> Mach-O Fat Binary | CA FE BA BE | class-ca-fe-ba-be | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | <https://en.wikipedia.org/wiki/Java_class_file> Java class file , <https://en.wikipedia.org/wiki/Fat_binary#Apple> Mach-O Fat Binary | https://referencesource.org/file-format-signatures/class-ca-fe-ba-be/ | [
"extension",
"format"
] | class |
Musical Score | 46 4F 52 4D ?? ?? ?? ?? 43 4D 55 53 | cmus-46-4f-52-4d-43-4d-55-53 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | FORM ???? CMUS | 0 any | cmus mus iff | <https://en.wikipedia.org/wiki/Interchange_File_Format> IFF <https://en.wikipedia.org/wiki/IFF_Musical_Score?action=edit&redlink=1> Musical Score | https://referencesource.org/file-format-signatures/cmus-46-4f-52-4d-43-4d-55-53/ | [
"extension",
"format",
"offset"
] | cmus |
<https://en.wikipedia.org/wiki/COM_file_(CP/M)> CP/M 3 and higher with overlays | C9 | com-c9 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | <https://en.wikipedia.org/wiki/COM_file_(CP/M)> CP/M 3 and higher with overlays [ 27 ] | https://referencesource.org/file-format-signatures/com-c9/ | [
"extension",
"format"
] | com |
Canon RAW Format Version 2 | 49 49 2A 00 10 00 00 00 43 52 | cr2-49-49-2a-00-10-00-00-00-43-52 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | Canon RAW Format Version 2 [ 12 ] Canon's RAW format is based on TIFF. [ 13 ] | https://referencesource.org/file-format-signatures/cr2-49-49-2a-00-10-00-00-00-43-52/ | [
"format"
] | cr2 |
Canon RAW Format Version 3 | 66 74 79 70 63 72 78 43 52 | cr3-66-74-79-70-63-72-78-43-52 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | sion 2 [ 12 ] Canon's RAW format is based on TIFF. [ 13 ] | 66 74 79 70 63 72 78 43 52 | ftypcrx | 0 | cr3 | 80 2A 5F D7 | €*_× | 0 | cin | <https://en.wikipedia.org/wiki/Eastman_Kodak> Kodak <https://en.wikipedia.org/wiki/Cineon#Cineon_file_format> Cineon image | 52 4E 43 01 52 4E 43 02 | RNC␁ RNC␂ | 0 | | Compressed ... | https://referencesource.org/file-format-signatures/cr3-66-74-79-70-63-72-78-43-52/ | [
"extension",
"hex_signature",
"offset"
] | cr3 |
Commodore 64 cartridge image | 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 | crt-43-36-34-20-43-41-52-54-52-49-44-47-45-20-20-20 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | crt | <https://en.wikipedia.org/wiki/Commodore_64> Commodore 64 cartridge image | https://referencesource.org/file-format-signatures/crt-43-36-34-20-43-41-52-54-52-49-44-47-45-20-20-20/ | [
"extension",
"format"
] | crt |
Google Chrome extension [ 48 ] or packaged app [ 49 ] | 43 72 32 34 | crx-43-72-32-34 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | crx | <https://en.wikipedia.org/wiki/Google_Chrome> Google Chrome extension [ 48 ] or packaged app [ 49 ] | https://referencesource.org/file-format-signatures/crx-43-72-32-34/ | [
"extension",
"format"
] | crx |
PEM encoded X.509 Certificate Signing Request | 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 | csr-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 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | -----BEGIN CERTIFICATE REQUEST----- | 0 | csr pem | PEM encoded X.509 <https://en.wikipedia.org/wiki/Certificate_Signing_Request> Certificate Signing Request | https://referencesource.org/file-format-signatures/csr-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/ | [
"extension",
"offset"
] | csr |
Claris Works word processing doc | 02 00 5a 57 52 54 00 00 00 00 00 00 00 00 00 00 | cwk-02-00-5a-57-52-54-00-00-00-00-00-00-00-00-00-00 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | 02 00 5a 57 52 54 00 00 00 00 00 00 00 00 00 00 | ␂␀ZWRT␀␀␀␀␀␀␀␀␀␀ | 0 | cwk | Claris Works word processing doc | https://referencesource.org/file-format-signatures/cwk-02-00-5a-57-52-54-00-00-00-00-00-00-00-00-00-00/ | [
"extension",
"format",
"hex_signature",
"offset"
] | cwk |
AppleWorks 5 document | 05 07 00 00 42 4F 42 4F 05 07 00 00 00 00 00 00 00 00 00 00 00 01 | cwk-05-07-00-00-42-4f-42-4f-05-07-00-00-00-00-00-00-00-00-00-00-00-01 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | cwk | <https://en.wikipedia.org/wiki/AppleWorks> AppleWorks 5 document | https://referencesource.org/file-format-signatures/cwk-05-07-00-00-42-4f-42-4f-05-07-00-00-00-00-00-00-00-00-00-00-00-01/ | [
"extension",
"format"
] | cwk |
AppleWorks 6 document | 06 07 E1 00 42 4F 42 4F 06 07 E1 00 00 00 00 00 00 00 00 00 00 01 | cwk-06-07-e1-00-42-4f-42-4f-06-07-e1-00-00-00-00-00-00-00-00-00-00-01 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | cwk | <https://en.wikipedia.org/wiki/AppleWorks> AppleWorks 6 document | https://referencesource.org/file-format-signatures/cwk-06-07-e1-00-42-4f-42-4f-06-07-e1-00-00-00-00-00-00-00-00-00-00-01/ | [
"extension",
"format"
] | cwk |
Commodore 64 1541 disk image (D64 format) | A0 32 41 A0 A0 A0 | d64-a0-32-41-a0-a0-a0 | 0x165A4 | https://en.wikipedia.org/wiki/List_of_file_signatures | d64 | <https://en.wikipedia.org/wiki/Commodore_64> Commodore 64 1541 disk image (D64 format) | https://referencesource.org/file-format-signatures/d64-a0-32-41-a0-a0-a0/ | [
"extension",
"format"
] | d64 |
Commodore 64 1581 disk image (D81 format) | A0 33 44 A0 A0 | d81-a0-33-44-a0-a0 | 0x61819 | https://en.wikipedia.org/wiki/List_of_file_signatures | d81 | <https://en.wikipedia.org/wiki/Commodore_64> Commodore 64 1581 disk image (D81 format) | https://referencesource.org/file-format-signatures/d81-a0-33-44-a0-a0/ | [
"extension",
"format"
] | d81 |
Direct Access Archive PowerISO | 44 41 41 | daa-44-41-41 | 44 | https://en.wikipedia.org/wiki/List_of_file_signatures | Direct Access Archive PowerISO | https://referencesource.org/file-format-signatures/daa-44-41-41/ | [
"format"
] | daa |
Windows Files And Settings Transfer Repository | 50 4D 4F 43 43 4D 4F 43 | dat-50-4d-4f-43-43-4d-4f-43 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | PMOCCMOC | 0 | dat | Windows Files And Settings Transfer Repository [ 53 ] See also USMT 3.0 (Win XP) [ 54 ] and USMT 4.0 (Win 7) [ 55 ] User Guides | | https://referencesource.org/file-format-signatures/dat-50-4d-4f-43-43-4d-4f-43/ | [
"extension",
"format",
"offset"
] | dat |
Windows Registry file | 72 65 67 66 | dat-hiv-72-65-67-66 | 72 | https://en.wikipedia.org/wiki/List_of_file_signatures | Windows Registry file | https://referencesource.org/file-format-signatures/dat-hiv-72-65-67-66/ | [
"format"
] | dat hiv |
OpenGL Iris Perfomer .PFB (Performer Fast Binary) | DB 0A CE 00 | db-0a-ce-00 | DB | https://en.wikipedia.org/wiki/List_of_file_signatures | OpenGL Iris Perfomer .PFB (Performer Fast Binary) | https://referencesource.org/file-format-signatures/db-0a-ce-00/ | [
"format"
] | null |
<https://en.wikipedia.org/wiki/DICOM> DICOM Medical File Format | 44 49 43 4D | dcm-44-49-43-4d | 128 | https://en.wikipedia.org/wiki/List_of_file_signatures | DICM | 128 | dcm | <https://en.wikipedia.org/wiki/DICOM> DICOM Medical File Format | https://referencesource.org/file-format-signatures/dcm-44-49-43-4d/ | [
"extension",
"format",
"offset"
] | dcm |
Adobe Shockwave | 52 49 46 58 ?? ?? ?? ?? 46 47 44 4D (big-endian) | dcr-52-49-46-58-46-47-44-4d-big-endian | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | dcr | <https://en.wikipedia.org/wiki/Adobe_Shockwave> Adobe Shockwave [ 83 ] [ 84 ] [ 85 ] | https://referencesource.org/file-format-signatures/dcr-52-49-46-58-46-47-44-4d-big-endian/ | [
"extension",
"format"
] | dcr |
Dalvik Executable | 64 65 78 0A 30 33 35 00 | dex-64-65-78-0a-30-33-35-00 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | dex | <https://en.wikipedia.org/wiki/Dalvik_(software)> Dalvik Executable | https://referencesource.org/file-format-signatures/dex-64-65-78-0a-30-33-35-00/ | [
"extension",
"format"
] | dex |
Macromedia Director file format | 52 49 46 58 ?? ?? ?? ?? 4D 56 39 33 (big-endian) | dir-dxr-drx-52-49-46-58-4d-56-39-33-big-endian | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | dir dxr drx | <https://en.wikipedia.org/wiki/Macromedia_Director> Macromedia Director file format [ 86 ] [ 84 ] [ 85 ] | https://referencesource.org/file-format-signatures/dir-dxr-drx-52-49-46-58-4d-56-39-33-big-endian/ | [
"extension",
"format"
] | dir dxr drx |
DjVu document | 41 54 26 54 46 4F 52 4D ?? ?? ?? ?? 44 4A 56 | djv-41-54-26-54-46-4f-52-4d-44-4a-56 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | erfect for Windows" and "RP3W : ROWPERFECT3 for Windows". | 41 54 26 54 46 4F 52 4D ?? ?? ?? ?? 44 4A 56 | AT&TFORM ???? DJV | 0 | djvu djv | <https://en.wikipedia.org/wiki/DjVu> DjVu document The following byte is either 55 ( U ) for single-page or 4D ( M ) for multi-page documents. | 2D 2D 2D 2D 2D 42 45 47 49 4E 20 ... | https://referencesource.org/file-format-signatures/djv-41-54-26-54-46-4f-52-4d-44-4a-56/ | [
"extension",
"format",
"hex_signature",
"offset"
] | djv |
DjVu document | 41 54 26 54 46 4F 52 4D ?? ?? ?? ?? 44 4A 56 | djvu-djv-41-54-26-54-46-4f-52-4d-44-4a-56 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | AT&TFORM ???? DJV | 0 | djvu djv | <https://en.wikipedia.org/wiki/DjVu> DjVu document The following byte is either 55 ( U ) for single-page or 4D ( M ) for multi-page documents. | https://referencesource.org/file-format-signatures/djvu-djv-41-54-26-54-46-4f-52-4d-44-4a-56/ | [
"extension",
"format",
"offset"
] | djvu djv |
Apple Disk Image file | 6B 6F 6C 79 | dmg-6b-6f-6c-79 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | koly | end–512 | dmg | <https://en.wikipedia.org/wiki/Apple_Disk_Image> Apple Disk Image file | | https://referencesource.org/file-format-signatures/dmg-6b-6f-6c-79/ | [
"extension",
"format"
] | dmg |
DOCFILE | D0 CF 11 E0 | doc-d0-cf-11-e0 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | Note the similarity between D0 CF 11 E0 and the word "DOCFILE"! | https://referencesource.org/file-format-signatures/doc-d0-cf-11-e0/ | [
"format",
"hex_signature"
] | doc |
Compound File Binary Format , a container format defined by Microsoft COM. It can contain the equivalent of files and directories. It is used by <https://en.wikipedia.org/wiki/Windows_Installer> Windows Installer and for documents in older versions of <https://en.wikipedia.org/wiki/Microsoft_Office> Microsoft Office . ... | D0 CF 11 E0 A1 B1 1A E1 | doc-xls-ppt-msi-msg-d0-cf-11-e0-a1-b1-1a-e1 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | doc xls ppt msi msg | <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 <https://en.wikipedia.org/wiki/Windows_Installer> Windows Installer and for documents in olde... | https://referencesource.org/file-format-signatures/doc-xls-ppt-msi-msg-d0-cf-11-e0-a1-b1-1a-e1/ | [
"extension",
"format"
] | doc xls ppt msi msg |
SMPTE DPX image | 53 44 50 58 | dpx-53-44-50-58 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | <https://en.wikipedia.org/wiki/SMPTE> SMPTE <https://en.wikipedia.org/wiki/Digital_Picture_Exchange> DPX image | https://referencesource.org/file-format-signatures/dpx-53-44-50-58/ | [
"extension"
] | dpx |
3D model compressed with Google Draco | 44 52 41 43 4F | drc-44-52-41-43-4f | 44 | https://en.wikipedia.org/wiki/List_of_file_signatures | 3D model compressed with Google Draco | https://referencesource.org/file-format-signatures/drc-44-52-41-43-4f/ | [
"format"
] | drc |
DuckDB database file | 44 55 43 4b | duck-44-55-43-4b | 8 | https://en.wikipedia.org/wiki/List_of_file_signatures | 44 55 43 4b | DUCK | 8 | | <https://en.wikipedia.org/wiki/DuckDB> DuckDB database file (source: <https://github.com/duckdb/duckdb/blob/main/src/include/duckdb/storage/storage_info.hpp#L69> Source code ) | | https://referencesource.org/file-format-signatures/duck-44-55-43-4b/ | [
"extension",
"format",
"hex_signature",
"offset"
] | duck |
Ion (serialization format) binary encoding | e0 01 00 ea | e0-01-00-ea | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | E0 01 00 EA | ê␀␁à | 0 | | <https://en.wikipedia.org/wiki/Ion_(serialization_format)> Ion (serialization format) binary encoding [ 100 ] | | https://referencesource.org/file-format-signatures/e0-01-00-ea/ | [
"format",
"hex_signature",
"offset"
] | null |
EnCase EWF version 1 format | 45 56 46 | e01-45-56-46 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | e01 | <https://en.wikipedia.org/wiki/EnCase> EnCase EWF version 1 format | https://referencesource.org/file-format-signatures/e01-45-56-46/ | [
"extension",
"format"
] | e01 |
ASTM E57 3D file format | 2d 45 35 37 | e57-2d-45-35-37 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | 2d 45 35 37 | ASTM-E57 | 0 | e57 | ASTM E57 3D file format | | https://referencesource.org/file-format-signatures/e57-2d-45-35-37/ | [
"extension",
"format",
"hex_signature",
"offset"
] | e57 |
ELF | 7F 45 4C 46 | elf-7f-45-4c-46 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | ␡ELF | 0 | none, .axf, .bin, .elf, .o, .out, .prx, .puff, | https://referencesource.org/file-format-signatures/elf-7f-45-4c-46/ | [
"extension",
"format",
"offset"
] | elf |
Email Message var5 | 52 65 63 65 69 76 65 64 3A | eml-52-65-63-65-69-76-65-64-3a | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | Email Message var5 [ <https://en.wikipedia.org/wiki/Wikipedia:Citation_needed> citation needed ] | https://referencesource.org/file-format-signatures/eml-52-65-63-65-69-76-65-64-3a/ | [
"format"
] | eml |
Encapsulated PostScript file version 3.0 | 25 21 50 53 2D 41 64 6F 62 65 2D 33 2E 30 20 45 50 53 46 2D 33 2E 30 | eps-epsf-25-21-50-53-2d-41-64-6f-62-65-2d-33-2e-30-20-45-50-53-46-2d-33-2e-30 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | Encapsulated PostScript file version 3.0 [ 34 ] | https://referencesource.org/file-format-signatures/eps-epsf-25-21-50-53-2d-41-64-6f-62-65-2d-33-2e-30-20-45-50-53-46-2d-33-2e-30/ | [
"format",
"offset"
] | eps epsf |
Encapsulated PostScript file version 3.1 | 25 21 50 53 2D 41 64 6F 62 65 2D 33 2E 31 20 45 50 53 46 2D 33 2E 30 | eps-epsf-25-21-50-53-2d-41-64-6f-62-65-2d-33-2e-31-20-45-50-53-46-2d-33-2e-30 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | Encapsulated PostScript file version 3.1 [ 35 ] | https://referencesource.org/file-format-signatures/eps-epsf-25-21-50-53-2d-41-64-6f-62-65-2d-33-2e-31-20-45-50-53-46-2d-33-2e-30/ | [
"format"
] | eps epsf |
Windows Event Viewer file format | 4C 66 4C 65 | evt-4c-66-4c-65 | 4C | https://en.wikipedia.org/wiki/List_of_file_signatures | iki/Direct_Access_Archive> Direct Access Archive PowerISO | 4C 66 4C 65 | LfLe | 0 | evt | Windows <https://en.wikipedia.org/wiki/Event_Viewer> Event Viewer file format | 45 6C 66 46 69 6C 65 | ElfFile | 0 | evtx | Windows <https://en.wikipedia.org/wiki/Event_Viewer> Event Viewer XML file format | 73 64 62 66 | sdbf | ... | https://referencesource.org/file-format-signatures/evt-4c-66-4c-65/ | [
"extension",
"hex_signature",
"offset"
] | evt |
Windows Event Viewer XML file format | 45 6C 66 46 69 6C 65 | evtx-45-6c-66-46-69-6c-65 | 45 | https://en.wikipedia.org/wiki/List_of_file_signatures | wikipedia.org/wiki/Event_Viewer> Event Viewer file format | 45 6C 66 46 69 6C 65 | ElfFile | 0 | evtx | Windows <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 <https://en.wikipedia.org/wi... | https://referencesource.org/file-format-signatures/evtx-45-6c-66-46-69-6c-65/ | [
"extension",
"hex_signature",
"offset"
] | evtx |
EnCase EWF version 2 format | 45 56 46 32 | ex01-45-56-46-32 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | Ex01 | <https://en.wikipedia.org/wiki/EnCase> EnCase EWF version 2 format | https://referencesource.org/file-format-signatures/ex01-45-56-46-32/ | [
"extension",
"format"
] | Ex01 |
DOS MZ executable | 4D 5A | exe-4d-5a | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | MZ | 0 | exe dll mui sys scr cpl ocx ax iec ime rs tsp fon efi | <https://en.wikipedia.org/wiki/DOS_MZ_executable> DOS MZ executable and its descendants (including <https://en.wikipedia.org/wiki/New_Executable> NE and <https://en.wikipedia.org/wiki/Portable_Executable> PE ) | https://referencesource.org/file-format-signatures/exe-4d-5a/ | [
"extension",
"format",
"offset"
] | exe |
DOS ZM executable | 5A 4D | exe-5a-4d | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | ZM | 0 | exe | <https://en.wikipedia.org/wiki/DOS_ZM_executable> DOS ZM executable and its descendants (rare) | https://referencesource.org/file-format-signatures/exe-5a-4d/ | [
"extension",
"format",
"offset"
] | exe |
OpenEXR image | 76 2F 31 01 | exr-76-2f-31-01 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | <https://en.wikipedia.org/wiki/OpenEXR> OpenEXR image | https://referencesource.org/file-format-signatures/exr-76-2f-31-01/ | [
"format"
] | exr |
Emulator Emaxsynth samples | 45 4D 58 32 | ez2-45-4d-58-32 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | <https://en.wikipedia.org/wiki/E-mu_Emax> Emulator Emaxsynth samples | https://referencesource.org/file-format-signatures/ez2-45-4d-58-32/ | [
"format"
] | ez2 |
Emulator III synth samples | 45 4D 55 33 | ez3-iso-45-4d-55-33 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | <https://en.wikipedia.org/wiki/E-mu_Emulator#The_Emulator_III> Emulator III synth samples | https://referencesource.org/file-format-signatures/ez3-iso-45-4d-55-33/ | [
"format"
] | ez3 iso |
Fantavision Movie | 46 4F 52 4D ?? ?? ?? ?? 46 41 4E 54 | fant-46-4f-52-4d-46-41-4e-54 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | FORM ???? FANT | 0 any | iff | <https://en.wikipedia.org/wiki/Amiga> Amiga <https://en.wikipedia.org/wiki/Fantavision> Fantavision Movie | https://referencesource.org/file-format-signatures/fant-46-4f-52-4d-46-41-4e-54/ | [
"extension",
"format",
"offset"
] | fant |
Facsimile Image | 46 41 58 58 | fax-46-41-58-58 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | faxx fax iff | <https://en.wikipedia.org/wiki/Interchange_File_Format> IFF <https://en.wikipedia.org/wiki/Fax> Facsimile Image | https://referencesource.org/file-format-signatures/fax-46-41-58-58/ | [
"extension",
"format"
] | fax |
IFF Facsimile Image | 46 4F 52 4D ?? ?? ?? ?? FAXX | faxx-fax-iff-46-4f-52-4d-faxx | 0 any | https://en.wikipedia.org/wiki/List_of_file_signatures | <https://en.wikipedia.org/wiki/Interchange_File_Format> IFF <https://en.wikipedia.org/wiki/Fax> Facsimile Image | https://referencesource.org/file-format-signatures/faxx-fax-iff-46-4f-52-4d-faxx/ | null | faxx fax iff |
FreeHand 8 document [ 50 ] [ 51 ] | 41 47 44 33 | fh8-41-47-44-33 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | fh8 | <https://en.wikipedia.org/wiki/Adobe_FreeHand> FreeHand 8 document [ 50 ] [ 51 ] | https://referencesource.org/file-format-signatures/fh8-41-47-44-33/ | [
"extension",
"format"
] | fh8 |
Flexible Image Transport System ( <https://en.wikipedia.org/wiki/FITS> FITS ) [ 41 ] | 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 | fits-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 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | fits | Flexible Image Transport System ( <https://en.wikipedia.org/wiki/FITS> FITS ) [ 41 ] | https://referencesource.org/file-format-signatures/fits-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/ | [
"extension",
"format"
] | fits |
FLAC | 66 4C 61 43 | flac-66-4c-61-43 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | fLaC", the FLAC stream marker in ASCII, meaning byte 0 of the stream is 0x66, followed by 0x4C 0x61 0x43 | https://referencesource.org/file-format-signatures/flac-66-4c-61-43/ | [
"extension",
"format",
"offset"
] | flac |
Free Lossless Image Format | 46 4C 49 46 | flif-46-4c-49-46 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | FLIF | 0 | flif | <https://en.wikipedia.org/wiki/Free_Lossless_Image_Format> Free Lossless Image Format | | https://referencesource.org/file-format-signatures/flif-46-4c-49-46/ | [
"extension",
"format",
"offset"
] | flif |
Flash Video file | 46 4C 56 | flv-46-4c-56 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | flv | <https://en.wikipedia.org/wiki/Flash_Video> Flash Video file | https://referencesource.org/file-format-signatures/flv-46-4c-56/ | [
"extension",
"format"
] | flv |
Formatted Text | 46 4F 52 4D ?? ?? ?? ?? 46 54 58 54 | ftxt-46-4f-52-4d-46-54-58-54 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | FORM ???? FTXT | 0 any | ftxt iff | <https://en.wikipedia.org/wiki/Interchange_File_Format> IFF <https://en.wikipedia.org/wiki/Formatted_text> Formatted Text | https://referencesource.org/file-format-signatures/ftxt-46-4f-52-4d-46-54-58-54/ | [
"extension",
"format",
"offset"
] | ftxt |
IFF Formatted Text | 46 4F 52 4D ?? ?? ?? ?? FTXT | ftxt-iff-46-4f-52-4d-ftxt | 0 any | https://en.wikipedia.org/wiki/List_of_file_signatures | <https://en.wikipedia.org/wiki/Interchange_File_Format> IFF <https://en.wikipedia.org/wiki/Formatted_text> Formatted Text | https://referencesource.org/file-format-signatures/ftxt-iff-46-4f-52-4d-ftxt/ | null | ftxt iff |
Commodore 64 1541 disk image (G64 format) | 47 53 52 2D 31 35 34 31 | g64-47-53-52-2d-31-35-34-31 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | g64 | <https://en.wikipedia.org/wiki/Commodore_64> Commodore 64 1541 disk image (G64 format) | https://referencesource.org/file-format-signatures/g64-47-53-52-2d-31-35-34-31/ | [
"extension",
"format"
] | g64 |
Image file encoded in Graphics Interchange Format (GIF) | 47 49 46 38 37 61 47 49 46 38 39 61 | gif-47-49-46-38-37-61-47-49-46-38-39-61 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | Image file encoded in the <https://en.wikipedia.org/wiki/Graphics_Interchange_Format> Graphics Interchange Format (GIF) [ 9 ] | https://referencesource.org/file-format-signatures/gif-47-49-46-38-37-61-47-49-46-38-39-61/ | [
"extension"
] | gif |
glTF file | 67 6c 54 46 | glb-67-6c-54-46 | 0 | https://en.wikipedia.org/wiki/List_of_file_signatures | 67 6c 54 46 | glTF | 0 | glb | Binary <https://en.wikipedia.org/wiki/GlTF> glTF file [ 101 ] | | https://referencesource.org/file-format-signatures/glb-67-6c-54-46/ | [
"extension",
"format",
"hex_signature",
"offset"
] | glb |
Gridded data (commonly weather observations or forecasts) in the WMO GRIB or GRIB2 format | 47 52 49 42 | grib-grib2-47-52-49-42 | 47 | https://en.wikipedia.org/wiki/List_of_file_signatures | | 0 | drc | 3D model compressed with Google Draco [ 88 ] | 47 52 49 42 | GRIB | 0 | grib grib2 | Gridded data (commonly weather observations or forecasts) in the <https://en.wikipedia.org/wiki/World_Meteorological_Organization> WMO <https://en.wikipedia.org/wiki/GRIB> GRIB or <https://en.wikipedia.org/wiki/GRIB2?action... | https://referencesource.org/file-format-signatures/grib-grib2-47-52-49-42/ | [
"extension",
"format",
"hex_signature",
"offset"
] | grib grib2 |
End of preview. Expand in Data Studio
File format magic numbers
Canonical, always-current version: https://referencesource.org/file-format-signatures/ Machine-readable: https://referencesource.org/file-format-signatures/data.json — this mirror is a point-in-time copy.
- Last verified: 2026-08-03
- Stale after: 2027-08-03 (past this date, prefer the canonical copy — it re-verifies on a cadence this snapshot does not)
- Records: 229
The leading bytes (magic number / file signature) that identify a file format, with its usual extension. Answers 'what actually is this file' when the extension is wrong or missing.
Provenance — what every record carries
Every record carries source (the URL the value was read from) and
source_quote (a verbatim quote from that page stating it). A value you
cannot check against its page is indistinguishable from an invented one;
these can all be checked. Each record is also individually addressable on
the canonical site at its url.
Licence position
CC BY-SA 4.0 (source: Wikipedia)
Facts are not copyrightable; what this dataset takes from each source is a fact plus a short attributed quote linking back to the page that states it.
Sources
Fields
See any record in data/records.jsonl — field names are self-describing,
and the canonical page for each record renders them with labels:
https://referencesource.org/file-format-signatures/
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