This table of file signatures (aka "magic numbers") is a work-in-progress. I have found little information on this in a single place, with the exception of the table in Forensic Computing: A Practitioner's Guide by T. Sammes & B. Jenkinson (Springer, 2000). Other useful and reasonably current sources are C.E. Codere's File Format site or the magic file commonly available with Linux systems. This table is still growing and contributions are welcome! Comments and queries can be sent to Gary Kessler at kumquat@sover.net.
This list is not exhaustive. Interpret the table as the magic number generally indicating the file type rather than the file type always having the given magic number. If you want to know what a particular file extension refers to, check out some of these sites:
- FILExt: The File Extension Source
- File Extension Seeker: Metasearch engine for file extensions
- fileinfo.net
- Wotsit.org, The Programmer's File and Data Format Resource
- Dot What!?, The net's #1 file extension website
You might also want to check out Tim Coakley's Filesig.co.uk site, with Filesig Manager (and Simple Carver). Take a look also at Marco Pontello's TrID - File Identifier, a utility designed to identify file types from their binary signatures.
Details on graphics file formats can be found at The Graphics File Formats Page.
Hex Signature ASCII Signature File Extension File Description TGA Truevision Targa Graphic file
Trailer:
54 52 55 45 56 49 53 49 TRUEVISI
4F 4E 2D 58 46 49 4C 45 ON-XFILE
2E 00 ..00 . PIC IBM Storyboard bitmap file PIF Windows Program Information File YTR IRIS OCR data file [11 byte offset]
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 byte offset]
........
........
........PDB Palmpilot Database/Document File 00 00 00 nn 66 74 79 70
33 67 70....ftyp
3gp3GG, 3G2 3rd Generation Partnership Project 3GPP (nn=0x14)
and 3GPP2 (nn=0x20) multimedia files00 00 00 18 66 74 79 70
33 67 70 35....ftyp
3gp5MP4 MPEG-4 video files 00 00 01 00 .... ICO Windows icon file 00 00 01 Bx .... MPEG, MPG MPEG video file 00 00 02 00 ...... CUR Windows cursor file WB2 QuattroPro for Windows Spreadsheet file 00 00 02 00 06 04 06 00
08 00 00 00 00 00........
......WK1 Lotus 1-2-3 spreadsheet (v1) file 00 00 1A 00 00 10 04 00
00 00 00 00........
..WK3 Lotus 1-2-3 spreadsheet (v3) file 00 00 1A 00 02 10 04 00
00 00 00 00........
..WK4 Lotus 1-2-3 spreadsheet (v4) file 00 00 49 49 58 50 52 or ..IIXPR 00 00 4D 4D 58 50 52 ..MMXPR QXD Quark Express document (Intel & Motorola, respectively)
NOTE: It appears that the byte following the 0x52 ("R") is
the language indicator; 0x33 ("3") seems to indicate English
and 0x61 ("a") reportedly indicates Korean.00 00 FE FF ..þÿ n/a Byte-order mark for 32-bit Unicode Transformation Format/
4-octet Universal Character Set (UTF-32/UCS-4), big-endian files.
(See the Unicode Home Page.)[7 byte offset]
00 00 FF FF FF FF[7 byte offset]
..ÿÿÿÿHLP Windows Help file 00 01 00 00 4D 53 49 53
41 4D 20 44 61 74 61 62
61 73 65....MSIS
AM Datab
aseMNY Microsoft Money file 00 01 00 00 53 74 61 6E
64 61 72 64 20 4A 65 74
20 44 42....Stan
dard Jet
DBMDB Microsoft Access file 00 01 00 08 00 01 00 01
01........
.IMG Ventura Publisher/GEM VDI Image Format Bitmap file 00 01 01 ... FLT OpenFlight 3D file 00 01 42 41 ..BA ABA Palm Address Book Archive file 00 01 42 44 ..BD DBA Palm DateBook Archive file 00 06 15 61 00 00 00 02
00 00 04 D2 00 00 10 00...a....
...Ò....DB Netscape Navigator (v4) database file 00 11 AF ..¯ FLI FLIC Animation file 00 1E 84 90 00 00 00 00 ........ SNM Netscape Communicator (v4) mail folder 00 5C 41 B1 FF .\A±ÿ ENC Mujahideen Secrets 2 encrypted file [512 byte offset]
00 6E 1E F0[512 byte offset]
.n.ðPPT PowerPoint presentation subheader (MS Office) 01 00 00 00 .... EMF Extended (Enhanced) Windows Metafile Format, printer spool file
(0x18-17 & 0xC4-36 is Win2K/NT; 0x5C0-1 is WinXP)01 00 00 00 01 ..... PIC Unknown type picture file 01 10 .. TR1 Novell LANalyzer capture file 01 DA 01 01 00 03 .Ú.... RGB Silicon Graphics RGB Bitmap 01 FF 02 04 03 02 .ÿ.... DRW Micrografx vector graphic file 02 64 73 73 .dss DSS Digital Speech Standard (Olympus, Grundig, & Phillips) 03 . DAT MapInfo Native Data Format DB3 dBASE III file 03 00 00 00 .... QPH Quicken price history file 03 00 00 00 41 50 50 52 ....APPR ADX Approach index file 04 . DB4 dBASE IV data file 07 . DRW A common signature and file extension for many drawing
programs.07 64 74 32 64 64 74 64 .dt2ddtd DTD DesignTools 2D Design file 08 . DB dBASE IV or dBFast configuration file [512 byte offset]
09 08 10 00 00 06 05 00[512 byte offset]
........XLS Excel spreadsheet subheader (MS Office) 0A nn 01 01 .... PCX ZSOFT Paintbrush file
(where nn = 0x02, 0x03, or 0x05)0C ED .í MP Monochrome Picture TIFF bitmap file (unconfirmed) 0D 44 4F 43 .DOC DOC DeskMate Document file 0E 57 4B 53 .WKS WKS DeskMate Worksheet [512 byte offset]
0F 00 E8 03[512 byte offset]
..è.PPT PowerPoint presentation subheader (MS Office) 11 00 00 00 53 43 43 41 ....SCCA PF Windows prefetch file 1A 00 00 ... NTF Lotus Notes database template 1A 00 00 04 00 00 ...... NSF Lotus Notes database 1A 0x .. ARC LH archive file, old version
(where x = 0x2, 0x3, 0x4, 0x8 or 0x9
for types 1-5, respectively)1A 0B .. PAK Compressed archive file
(often associated with Quake Engine games)1A 35 01 00 .5.. ETH GN Nettest WinPharoah capture file 1A 52 54 53 20 43 4F 4D
50 52 45 53 53 45 44 20
49 4D 41 47 45 20 56 31
2E 30 1A.RTS COM
PRESSED
IMAGE V1
.0.DAT Runtime Software disk image 1D 7D .} WS WordStar Version 5.0/6.0 document 1F 8B 08 ... GZ GZIP archive file 1F 9D 90 ... TAR.Z Compressed tape archive file 21 12 !. AIN AIN Compressed Archive 21 3C 61 72 63 68 3E 0A !<arch>. LIB Unix archiver (ar) files and Microsoft Program Library
Common Object File Format (COFF)21 42 44 4E !BDN PST Microsoft Outlook Personal Folder file 23 20 # MSI Cerius2 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# Micros
oft Deve
loper St
udioDSP Microsoft Developer Studio project file 23 21 41 4D 52 #!AMR AMR Adaptive Multi-Rate ACELP (Algebraic Code Excited Linear Prediction)
Codec, commonly audio format with GSM cell phones24 46 4C 32 40 28 23 29
20 53 50 53 53 20 44 41
54 41 20 46 49 4C 45$FL2@(#)
SPSS DA
TA FILESAV SPSS Data file 25 21 50 53 2D 41 64 6F
62 65 2D 33 2E 30 20 45
50 53 46 2D 33 20 30%!PS-Ado
be-3.0 E
PSF-3.0EPS Adobe encapsulated PostScript file
(If this signature is not at the immediate
beginning of the file, it will occur early
in the file, commonly at byte offset 30)25 50 44 46 PDF, FDF Adobe Portable Document Format and Forms Document file
Trailers:
0A 25 25 45 4F 46 0A (.%%EOF.)
0D 0A 25 25 45 4F 46 0D 0A (..%%EOF..)
0D 25 25 45 4F 46 0D (.%%EOF.)28 54 68 69 73 20 66 69
6C 65 20 6D 75 73 74 20
62 65 20 63 6F 6E 76 65
72 74 65 64 20 77 69 74
68 20 42 69 6E 48 65 78
20(This fi
le must
be conve
rted wit
h BinHex
HQX Macintosh BinHex 4 Compressed Archive 2A 2A 2A 20 20 49 6E 73
74 61 6C 6C 61 74 69 6F
6E 20 53 74 61 72 74 65
64 20*** Ins
tallatio
n Starte
dLOG Symantec Wise Installer log file [2 byte offset]
2D 6C 68[2 byte offset]
-lhLHA, LZH Compressed archive file 2E 52 45 43 .REC IVR RealPlayer video file (V11 and later) 2E 52 4D 46 .RMF RM RealMedia streaming media file 2E 72 61 FD 00 .ra.. RA RealMedia streaming media file 2E 73 6E 64 .snd AU Sun Microsystems audio file format 30 0 CAT Microsoft security catalog file 30 00 00 00 4C 66 4C 65 0...LfLe EVT Windows Event Viewer file 30 26 B2 75 8E 66 CF 11
A6 D9 00 AA 00 62 CE 6C0&²u.fÏ.
¦Ù.ª.bÎlASF, WMA, WMV Microsoft Windows Media Audio/Video File
(Advanced Streaming Format)30 31 4F 52 44 4E 41 4E
43 45 20 53 55 52 56 45
59 20 20 20 20 20 20 2001ORDNAN
CE SURVE
YNTF National Transfer Format Map File 30 37 30 37 30 nn 07070. n/a Archive created with the cpio utility (where nn
values 0x37 ("7"), 0x31 ("1"), and 0x32 ("2") refer to the
standard ASCII format, new ASCII (aka SVR4) format, and CRC
format, respectively. (The swpackage(8) page has additional
information.) (Thanks to F. Webber for this....)31 BE or 1¾ 32 BE 2¾ WRI Microsoft Write file 34 CD B2 A1 4Ͳ¡ n/a Extended tcpdump (libpcap) capture file (Linux/Unix) 37 7A BC AF 27 1C 7z¼¯'. 7Z 7-Zip compressed file 38 42 50 53 8BPS PSD Photoshop image file 3C < ASX Advanced Stream redirector file XDR BizTalk XML-Data Reduced Schema file 3C 21 64 6F 63 74 79 70 <!doctyp DCI AOL HTML mail file 3C 3F 78 6D 6C 20 76 65
72 73 69 6F 6E 3D<?xml ve
rsion=MANIFEST Windows Visual Stylesheet XML file 3C 3F 78 6D 6C 20 76 65
72 73 69 6F 6E 3D 22 31
2E 30 22 3F 3E<?xml ve
rsion="1
.0"?>XUL XML User Interface Language file 3C 3F 78 6D 6C 20 76 65
72 73 69 6F 6E 3D 22 31
2E 30 22 3F 3E 0D 0A 3C
4D 4D 43 5F 43 6F 6E 73
6F 6C 65 46 69 6C 65 20
43 6F 6E 73 6F 6C 65 56
65 72 73 69 6F 6E 3D 22<?xml ve
rsion="1
.0"?>..<
MMC_Cons
oleFile
ConsoleV
ersion="MSC Microsoft Management Console Snap-in Control file [24 byte offset]
3E 00 03 00 FE FF 09 00
06[24 byte offset]
>...þÿ..
.WB3 Quatro Pro for Windows 7.0 Notebook file 3F 5F 03 00 ?_.. GID Windows Help index file HLP Windows Help file [32 byte offset]
40 40 40 20 00 00 40 40
40 40[32 byte offset]
@@@ ..@@
@@ENL EndNote Library File 41 43 53 44 ACSD n/a Miscellaneous AOL parameter and information files 41 4D 59 4F AMYO SYW Harvard Graphics symbol graphic 41 4F 4C 20 46 65 65 64
62 61 67AOL Feed
bagBAG AOL and AIM buddy list file 41 4F 4C 44 42 AOLDB ABY, IDX AOL database files: address book (ABY) and user configuration
data (MAIN.IDX)41 4F 4C 49 44 58 AOLIDX IND AOL client preferences/settings file (MAIN.IND) 41 4F 4C 49 4E 44 45 58 AOLINDEX ABI AOL address book index file 41 56 47 36 5F 49 6E 74
65 67 72 69 74 79 5F 44
61 74 61 62 61 73 65AVG6_Int
egrity_D
atabaseDAT AVG6 Integrity database file 41 4F 4C 56 4D 31 30 30 AOLVM100 n/a AOL personal file cabinet (PFC) file 41 72 43 01 ArC. ARC FreeArc compressed file 42 45 47 49 4E 3A 56 43
41 52 44 0D 0ABEGIN:VC
ARD..VCF vCard file 42 4C 49 32 32 33 51 BLI223Q BIN Thomson Speedtouch series WLAN router firmware 42 4D BM BMP, DIB Windows (or device-independent) bitmap image 42 4F 4F 4B 4D 4F 42 49 BOOKMOBI PRC Palmpilot resource file 42 5A 68 BZh BZ2, TAR.BZ2, TBZ2, TB2 bzip2 compressed archive 43 42 46 49 4C 45 CBFILE CBD WordPerfect dictionary file (unconfirmed) 43 44 30 30 31 CD001 ISO ISO-9660 CD Disc Image
(This signature usually occurs at byte 8001, 8801, or 9001.)43 4F 4D 2B COM+ CLB COM+ Catalog file 43 52 45 47 CREG DAT Windows 9x registry hive 43 52 55 53 48 20 76 CRUSH v CRU Crush compressed archive 43 57 53 CWS SWF Shockwave Flash file (v5+) 43 61 74 61 6C 6F 67 20
33 2E 30 30 00Catalog
3.00.CTF WhereIsIt Catalog file 43 6C 69 65 6E 74 20 55
72 6C 43 61 63 68 65 20
4D 4D 46 20 56 65 72 20Client U
rlCache
MMF VerDAT IE History DAT file 44 42 46 48 DBFH DB Palm Zire photo database 44 4D 53 21 DMS! DMS Amiga DiskMasher compressed archive 44 4F 53 DOS ADF Amiga disk file 45 4E 54 52 59 56 43 44
02 00 00 01 02 00 18 58ENTRYVCD
.......XVCD VideoVCD (GNU VCDImager) file 45 52 46 53 53 41 56 45
44 41 54 41 46 49 4C 45ERFSSAVE
DATAFILEDAT Kroll EasyRecovery Saved Recovery State file 45 56 46 EVF Enn (where nn are numbers) EnCase evidence file 46 41 58 43 4F 56 45 52
2D 56 45 52FAXCOVER
-VERCPE Microsoft Fax Cover Sheet 46 45 44 46 FEDF SBV (Unknown file type) 46 4C 56 FLV SWF Flash video file 46 4F 52 4D 00 FORM. AIFF Audio Interchange File 46 57 53 FWS SWF Shockwave Flash file 46 72 6F 6D 20 20 20 or FHom 46 72 6F 6D 20 3F 3F 3F or FHom ??? 46 72 6F 6D 3A 20 FHom: EML A commmon file extension for e-mail files. Signatures shown here
are for Netscape, Eudora, and a generic signature, respectively.
EML is also used by Outlook Express and QuickMail.47 46 31 50 41 54 43 48 GF1PATCH PAT Advanced Gravis Ultrasound patch file 47 49 46 38 37 61 or GIF87a 47 49 46 38 39 61 GIF89a GIF Graphics interchange format file
Trailer: 00 3B (.;)47 50 41 54 GPAT PAT GIMP (GNU Image Manipulation Program) pattern file 47 58 32 GX2 GX2 Show Partner graphics file (not confirmed) 48 48 47 42 31 HHGB1 SH3 Harvard Graphics presentation file 49 20 49 I I TIF, TIFF Tagged Image File Format file 49 44 33 ID3 MP3 MPEG-1 Audio Layer 3 (MP3) audio file 49 49 2A 00 II*. TIF, TIFF Tagged Image File Format file (little
endian, i.e., LSB first in the byte; Intel)49 53 63 28 ISc( CAB Install Shield v5.x or 6.x compressed file 49 54 53 46 ITSF CHM Microsoft HTML Help Compiled Help File 49 6E 6E 6F 20 53 65 74
75 70 20 55 6E 69 6E 73
74 61 6C 6C 20 4C 6F 67
20 28 62 29Inno Set
up Unins
tall Log
(b)DAT Inno Setup Uninstall Log file 4A 41 52 43 53 00 JARCS. JAR JARCS compressed archive 4A 47 03 0E 00 00 00 or JG..... 4A 47 04 0E 00 00 00 JG..... ART AOL ART file 4C 00 00 00 01 14 02 00 L....... LNK Windows shortcut file 4C 01 L. OBJ Microsoft Common Object File Format (COFF) relocatable
object code file for an Intel 386 or later/compatible processors4C 4E 02 00 LN.. HLP Windows Help file 4D 49 4C 45 53 MILES MLS Milestones v1.0 project management and scheduling software
(Also see "MV2C" and "MV214" signatures)4D 4C 53 57 MLSW MLS Skype localization data file 4D 4D 00 2A MM.* TIF, TIFF Tagged Image File Format file (big
endian, i.e., LSB last in the byte; Motorola)4D 4D 00 2B MM.+ TIF, TIFF BigTIFF files; Tagged Image File Format files >4 GB 4D 4D 4D 44 00 00 MMMD.. MMF Yamaha Corp. Synthetic music Mobile Application Format (SMAF)
for multimedia files that can be played on hand-held devices.4D 53 43 46 MSCF CAB Microsoft cabinet file PPZ Powerpoint Packaged Presentation SNP Microsoft Access Snapshot Viewer file 4D 53 46 54 02 00 01 00 MSFT.... TLB OLE, SPSS, or Visual C++ type library file 4D 53 5F 56 4F 49 43 45 MS_VOICE CDR, DVF Sony Compressed Voice File MSV Sony Memory Stick Compressed Voice file 4D 54 68 64 MThd MID, MIDI Musical Instrument Digital Interface (MIDI) sound file 4D 56 MV DSN CD Stomper Pro label file 4D 56 32 43 MV2C MLS Milestones v2.1a project management and scheduling software
(Also see "MILES" and "MV214" signatures)4D 56 32 31 34 MV214 MLS Milestones v2.1b project management and scheduling software
(Also see "MILES" and "MV2C" signatures)4D 5A MZ COM, DLL, DRV, EXE, PIF, QTS, QTX, SYS Windows/DOS executable file ACM MS audio compression manager driver AX Library cache file CPL Control panel application FON Font file OCX ActiveX or OLE Custom Control OLB OLE object library SCR Screen saver VBX VisualBASIC application VXD, 386 Windows virtual device drivers 4D 5A 90 00 03 00 00 00 MZ...... API Acrobat plug-in AX DirectShow filter FLT Audition graphic filter file (Adobe) 4D 5A 90 00 03 00 00 00
04 00 00 00 FF FFMZ......
....ÿÿZAP ZoneAlam data file 4D 69 63 72 6F 73 6F 66
74 20 56 69 73 75 61 6C
20 53 74 75 64 69 6F 20
53 6F 6C 75 74 69 6F 6E
20 46 69 6C 65Microsof
t Visual
Studio
Solution
FileSLN Visual Studio .NET Solution file [84 byte offset]
4D 69 63 72 6F 73 6F 66
74 20 57 69 6E 64 6F 77
73 20 4D 65 64 69 61 20
50 6C 61 79 65 72 20 2D
2D 20[84 byte offset]
Microsof
t Window
s Media
Player -
-WPL Windows Media Player playlist 4E 41 56 54 52 41 46 46
49 43NAVTRAFF
ICDAT TomTom traffic data file 4E 45 53 4D 1A 01 NESM.. NSF NES Sound file 4E 49 54 46 30 NITF0 NTF National Imagery Transmission Format (NITF) file 4E 61 6D 65 3A 20 Name: COD Agent newsreader character map file 4F 50 4C 44 61 74 61 62
61 73 65 46 69 6C 65OPLDatab
aseFileDBF Psion Series 3 Database file 4F 67 67 53 00 02 00 00
00 00 00 00 00 00OggS....
......OGA, OGG, OGV, OGX Ogg Vorbis Codec compressed Multimedia file 4F 7B O{ DW4 Visio/DisplayWrite 4 text file (unconfirmed) 50 00 00 00 20 00 00 00 P... ... IDX Quicken QuickFinder Information File 50 35 0A P5. PGM Portable Graymap Graphic 50 41 43 4B PACK PAK Quake archive file 50 45 53 54 PEST DAT PestPatrol data/scan strings 50 49 43 54 00 08 PICT.. IMG ADEX Corp. ChromaGraph Graphics Card Bitmap Graphic file 50 4B 03 04 PK.. ZIP PKZIP archive file (Ref. 1 | Ref. 2)
Trailer: filename 50 4B 17 characters 00 00 00
Trailer: (filename PK 17 characters ...)DOCX, PPTX, XLSX Microsoft Office Open XML Format Document JAR Java archive; compressed file package for classes and data SXC, SXD, SXI, SXW OpenOffice spreadsheet, drawing, presentation, and text files WMZ Windows Media compressed skin file XPI Mozilla Browser Archive XPT eXact Packager Models 50 4B 03 04 14 00 06 00 PK...... DOCX, PPTX, XLSX Office 2007 documents 50 4B 03 04 14 00 08 00
08 00PK......
..JAR Java archive [30 byte offset]
50 4B 4C 49 54 45[30 byte offset]
PKLITEZIP PKLITE compressed ZIP archive (see also PKZIP) [526 byte offset]
50 4B 53 70 58[526 byte offset]
PKSFXZIP PKSFX self-extracting executable compressed file (see also PKZIP) 50 4D 43 43 PMCC GRP Windows Program Manager group file 50 4E 43 49 55 4E 44 4F PNCIUNDO DAT Norton Disk Doctor undo file [92 byte offset]
51 45 4C 20[92 byte offset]
QELQEL Quicken data file 51 46 49 FB QFI. IMG QEMU Qcow Disk Image 51 57 20 56 65 72 2E 20 QW Ver. ABD, QSD Quicken data file 52 41 5A 41 54 44 42 31 RAZATDB1 DAT Shareaza (Windows P2P client) thumbnail 52 45 47 45 44 49 54 REGEDIT REG, SUD Windows NT Registry and Registry Undo files 52 45 56 4E 55 4D 3A 2C REVNUM:, ADF Antenna data file 52 49 46 46 RIFF ANI Windows animated cursor DAT Video CD MPEG or MPEG1 movie file DS4 Micrografx Designer v4 graphic file 52 49 46 46 xx xx xx xx
41 56 49 20 4C 49 53 54RIFF....
AVI LISTAVI Resource Interchange File Format -- Windows Audio
Video Interleave file52 49 46 46 xx xx xx xx
43 44 44 41 66 6D 74 20RIFF....
CDDAfmtCDA Resource Interchange File Format -- Compact Disc
Digital Audio (CD-DA) file52 49 46 46 xx xx xx xx
51 4C 43 4D 66 6D 74 20RIFF....
QLCMfmtQCP Resource Interchange File Format -- Qualcomm
PureVoice52 49 46 46 xx xx xx xx
52 4D 49 44 64 61 74 61RIFF....
RMIDdataRMI Resource Interchange File Format -- Windows Musical
Instrument Digital Interface file52 49 46 46 xx xx xx xx
57 41 56 45 66 6D 74 20RIFF....
WAVEfmtWAV Resource Interchange File Format -- Audio for
Windows file52 54 53 53 RTSS CAP Windows NT Netmon capture file 52 61 72 21 1A 07 00 Rar!... RAR WinRAR compressed archive file 53 43 48 6C SCHl AST Need for Speed: Underground Audio file 53 43 4D 49 SCMI IMG Img Software Set Bitmap 53 48 4F 57 SHOW SHW Harvard Graphics DOS Ver. 2/x Presentation file 53 49 45 54 52 4F 4E 49
43 53 20 58 52 44 20 53
43 41 4ESIETRONI
CS XRD S
CANCPI Sietronics CPI XRD document 53 49 54 21 00 SIT!. SIT StuffIt compressed archive 53 4D 41 52 54 44 52 57 SMARTDRW SDR SmartDraw Drawing file 53 51 4C 4F 43 4F 4E 56
48 44 00 00 31 2E 30 00SQLOCONV
HD..1.0.CNV DB2 conversion file 53 6D 62 6C Smbl SYM (Unconfirmed file type. Likely type is Harvard Graphics
Version 2.x graphic symbol or Windows SDK graphic symbol)53 74 75 66 66 49 74 20
28 63 29 31 39 39 37 2DStuffIt
(c)1997-SIT StuffIt compressed archive 54 68 69 73 20 69 73 20 This is INFO UNIX GNU Info Reader File 55 43 45 58 UCEX UCE Unicode extensions 55 46 41 C6 D2 C1 UFAÆÒÁ UFA UFA compressed archive 55 46 4F 4F 72 62 69 74 UFOOrbit DAT UFO Capture v2 map file 56 43 50 43 48 30 VCPCH0 PCH Visual C PreCompiled header file 56 45 52 53 49 4F 4E 20 VERSION CTL Visual Basic User-defined Control file 57 4D 4D 50 WMMP DAT Walkman MP3 container file 57 53 32 30 30 30 WS2000 WS2 WordStar for Windows Ver. 2 document [29,152 byte offset]
57 69 6E 5A 69 70[29,152 byte offset]
WinZipZIP WinZip compressed archive 58 43 50 00 XCP. CAP Cinco NetXRay, Network General Sniffer, and
Network Associates Sniffer capture file58 50 43 4F 4D 0A 54 79
70 65 4C 69 62XPCOM.Ty
peLibXPT XPCOM type libraries for the XPIDL compiler 58 54 XT.. BDR MS Publisher border 5A 4F 4F 20 ZOO ZOO ZOO compressed archive 5B 47 65 6E 65 72 61 6C
5D 0D 0A 44 69 73 70 6C
61 79 20 4E 61 6D 65 3D
3C 44 69 73 70 6C 61 79
4E 61 6D 65[General
]..Displ
ay Name=
<Display
NameECF MS Exchange 2007 extended configuartion file 5B 4D 53 56 43 [MSVC VCW Microsoft Visual C++ Workbench Information File 5B 50 68 6F 6E 65 5D [Phone] DUN Dial-up networking file (unconfirmed) 5B 56 45 52 5D 0D 0A 09 or [VER]... 5B 76 65 72 5D 0D 0A 09 or [ver]... SAM AMU Pro document [2 byte offset]
5B 56 65 72 73 69 6F 6E[2 byte offset]
[VersionCIF (Unknown file type) 5B 57 69 6E 64 6F 77 73
20 4C 61 74 69 6E 20[Windows
LatinCPX Microsoft Code Page Translation file 5B 66 6C 74 73 69 6D 2E
30 5D[fltsim.
0]CFG Flight Simulator Aircraft Configuration file 5F 43 41 53 45 5F _CASE_ CAS, CBK EnCase case file (and backup) 60 EA `ê ARJ Compressed archive file 62 65 67 69 6E begin n/a UUencoded files start with a string:
begin mode path
where mode is the set of permissions as used in
Linux/Unix and path is the name given to the decoded
file. (See this uuencode page for more information.)63 75 73 68 00 00 00 02
00 00 00cush....
...CSH Photoshop Custom Shape 64 00 00 00 d... P10 Intel PROset/Wireless Profile 64 73 77 66 69 6C 65 dswfile DSW Microsoft Visual Studio workspace file 66 4C 61 43 00 00 00 22 fLaC..." FLAC Free Lossless Audio Codec file 6C 33 33 6C l33l DBB Skype user data file (profile and contacts) [4 byte offset]
6D 6F 6F 76[4 byte offset]
moovMOV QuickTime movie file
0x66-72-65-65 free
0x6D-64-61-74 mdat
0x77-69-64-65 wide
And the following have been reported to me:
0x70-6E-6F-74 pnot
0x73-6B-69-70 skip
Furthermore, if you look at byte position xxxxxxxx+4 (hex), you will find one (or more!) of these strings repeated;
the string "free" seems to be the most common. (Thanks to D. Wright for getting me started on this!)
72 65 67 66 regf DAT Windows registry hive file 72 74 73 70 3A 2F 2F rtsp:// RAM RealMedia metafile 73 6C 68 21 or slh! 73 6C 68 2E slh. DAT Allegro Generic Packfile Data file (0x21 = compressed,
0x2E = uncompressed)73 72 63 64 6F 63 69 64
3Asrcdocid
:CAL CALS raster bitmap file 73 7A 65 7A szez PDB PowerBASIC Debugger Symbols file [60 byte offset]
74 42 4D 50 4B 6E 57 72[60 byte offset]
tBMPKnWrPRC PathWay Map file, used with GPS devices [257 byte offset]
75 73 74 61 72[257 byte offset]
ustarTAR Tape Archive file (http://www.mkssoftware.com/docs/man4/tar.4.asp) 76 32 30 30 33 2E 31 30
0D 0A 30 0D 0Av2003.10
..0..FLT Qimage filter 78 x DMG Mac OS X Disk Copy Disk Image file 7A 62 65 78 zbex INFO ZoomBrowser Image Index file (ZbThumbnal.info) 7B 0D 0A 6F 20 {..o LGC, LGD Windows application log 7B 5C 72 74 66 31 {\rtf1 RTF Rich text format word processing file
Trailer: 5C 70 61 72 20 7D 7D (\par }})7E 42 4B 00 ~BK. PSP Corel Paint Shop Pro image file 7F 45 4C 46 .ELF n/a Executable and Linking Format executable file (Linux/Unix) 80 . OBJ Relocatable object code 80 00 00 20 03 12 04 ....... ADX Dreamcast audio file 81 CD AB .Í« WPF WordPerfect text file 89 50 4E 47 0D 0A 1A 0A .PNG.... PNG Portable Network Graphics file 8A 01 09 00 00 00 E1 08
00 00 99 19......á.
....AW MS Answer Wizard file 91 33 48 46 '3HF HAP Hamarsoft HAP 3.x compressed archive 95 00 or .. 95 01 .. SKR PGP secret keyring file 99 01 .. PKR PGP public keyring file 9C CB CB 8D 13 75 D2 11
91 58 00 C0 4F 79 56 A4.ËË..UÒ.
.X.ÀOyV¤WAB Outlook address file [512 byte offset]
A0 46 1D F0[512 byte offset]
F.ðPPT PowerPoint presentation subheader (MS Office) A1 B2 C3 D4 ¡²ÃÔ n/a tcpdump (libpcap) capture file (Linux/Unix) A1 B2 CD 34 ¡²Í4 n/a Extended tcpdump (libpcap) capture file (Linux/Unix) A9 0D 00 00 00 00 00 00 ©....... DAT Access Data FTK evidence file AC 9E BD 8F 00 00 ¬.½... QDF Quicken data file B1 68 DE 3A ±hÞ: DCX Graphics Multipage PCX bitmap file B5 A2 B0 B3 B3 B0 A5 B5 µ¢°³³°¥µ CAL (Unknown file type...) BE 00 00 00 AB 00 00 00
00 00 00 00 00¾...«...
....WRI MS Write file C3 AB CD AB ëͫ ACS MS Agent Character file C5 D0 D3 C6 ÅÐÓÆ EPS Adobe encapsulated PostScript file CA FE BA BE Êþº¾ CLASS Java bytecode file CD 20 AA AA 02 00 00 00 Í ªª.... n/a Norton Anti-Virus quarantined virus file CF 11 E0 A1 B1 1A E1 00 Ï.ࡱ.á. DOC Perfect Office document
[Note similarity to MS Office header, below]CF AD 12 FE Ï.þ DBX Outlook Express e-mail folder D0 CF 11 E0 A1 B1 1A E1 ÐÏ.ࡱ.á DOC, DOT, PPS, PPT, XLA, XLS, WIZ Microsoft Office applications (Word, Powerpoint, Excel, Wizard)
[See also Word, Powerpoint, and Excel "subheaders" at byte offset 512]AC_ CaseWare Working Papers compressed client file ADP Access project file APR Lotus/IBM Approach 97 file DB MSWorks database file MSC Microsoft Common Console Document MSI Microsoft Installer package MTW Minitab data file OPT Developer Studio File Workspace Options file PUB MS Publisher file SOU Visual Studio Solution User Options file SPO SPSS output file VSD Visio file WPS MSWorks text document D2 0A 00 00 Ò... FTR GN Nettest WinPharoah filter file D4 2A Ô* ARL, AUT AOL history (ARL) and typed URL (AUT) files D4 C3 B2 A1 Ôò¡ n/a WinDump (winpcap) capture file (Windows) D7 CD C6 9A ×ÍÆ. WMF Windows graphics metafile DC DC ÜÜ CPL Corel color palette file DC FE Üþ EFX eFax file format E3 10 00 01 00 00 00 00 ã....... INFO Amiga Icon file E3 82 85 96 ã... PWL Windows password file E8 or è E9 or é EB ë COM, SYS Windows executable file EB 3C 90 2A ë<.* IMG GEM Raster file [512 byte offset]
EC A5 C1 00[512 byte offset]
ì¥Á.DOC Word document subheader (MS Office) ED AB EE DB í"îÛ RPM RedHat Package Manager file EF BB BF  n/a Byte-order mark for 8-bit Unicode Transformation Format
(UTF-8) files. (See the Unicode Home Page.)[512 byte offset]
FD FF FF FF 04[512 byte offset]
ýÿÿÿ.SUO Visual Studio Solution User Options subheader (MS Office) [512 byte offset]
FD FF FF FF nn 00 00 00[512 byte offset]
ýÿÿÿ....PPT PowerPoint presentation subheader (MS Office)
(where nn has been seen with values 0x0E, 0x1C, and 0x43)[512 byte offset]
FD FF FF FF nn 02[512 byte offset]
ýÿÿÿ..XLS Excel spreadsheet subheader (MS Office)
(where nn = 0x10, 0x22, 0x23, 0x28, or 0x29)[512 byte offset]
FD FF FF FF 20 00 00 00[512 byte offset]
ýÿÿÿ ...OPT Developer Studio File Workspace Options subheader (MS Office) XLS Excel spreadsheet subheader (MS Office) [512 byte offset]
FD FF FF FF xx xx xx xx
xx xx xx xx 04 00 00 00[512 byte offset]
ýÿÿÿ....
........DB Thumbs.db subheader (MS Office) FE FF þÿ n/a Byte-order mark for 16-bit Unicode Transformation Format/
2-octet Universal Character Set (UTF-16/UCS-2), little-endian files.
(See the Unicode Home Page.)FF ÿ SYS Windows executable (SYS) file FF 00 02 00 04 04 05 54
02 00ÿ......T
..WKS Works for Windows spreadsheet file FF 46 4F 4E 54 ÿFONT CPI Windows international code page FF 4B 45 59 42 20 20 20 ÿKEYB SYS Keyboard driver file FF 57 50 43 ÿWPC WP, WPD, WPG, WP5 WordPerfect text and graphics file FF D8 FF E0 xx xx 4A 46
49 46 00ÿØÿà..JF
IF.JFIF, JPE, JPEG, JPG JPEG/JFIF graphics file
Trailer: FF D9 (..)FF D8 FF E1 xx xx 45 78
69 66 00ÿØÿá..Ex
if.JPG Digital camera JPG using Exchangeable Image File Format (EXIF)
Trailer: FF D9 (..)
See "Using Extended File Information (EXIF) File Headers in Digital
Evidence Analysis" (P. Alvarez, IJDE, 2(3), Winter 2004)
FF D8 FF E8 xx xx 53 50
49 46 46 00ÿØÿá..SP
IFF.JPG Still Picture Interchange File Format (SPIFF)
Trailer: FF D9 (..)
- 0xFF-D8-FF-E0 — Shown above. Standard JPEG/JFIF file.
- 0xFF-D8-FF-E1 — Shown above. Standard JPEG/Exif file.
- 0xFF-D8-FF-E2 — Canon EOS-1D JPEG file.
- 0xFF-D8-FF-E3 — Samsung D500 JPEG file.
- 0xFF-D8-FF-DB — Samsung D807 JPEG file.
- 0xFF-D8-FF-E8 — Shown above. Still Picture Interchange File Format (SPIFF).
FF Ex ÿ. FF Fx ÿ. MPEG, MPG, MP3 MPEG audio file frame synch pattern FF FE ÿþ REG Windows Registry file n/a Byte-order mark for 16-bit Unicode Transformation Format/
2-octet Universal Character Set (UTF-16/UCS-2), big-endian files.
(See the Unicode Home Page.)FF FE 00 00 ÿþ.. n/a Byte-order mark for 32-bit Unicode Transformation Format/
4-octet Universal Character Set (UTF-32/UCS-4), little-endian files.
(See the Unicode Home Page.)FF FE 23 00 6C 00 69 00
6E 00 65 00 20 00 31 00ÿþ#.l.i.
n.e. .1.MOF Windows MSinfo file FF FF FF FF ÿÿÿÿ SYS DOS system driver The following individuals have given me updates or suggestions for this list over the last couple of years: Devon Ackerman, Vladimir Benko, Sam Brothers, Per Christensson, Jeffrey Duggan, George Harpur, Brian High, Bill Kuhns, Anand Mani, Kevin Mansell, Bruce Modick, Mike Sutton, Franklin Webber, and David Wright. I thank them and apologize if I have missed anyone.
I would like to give particular thanks to Danny Mares of Mares and Company, author of the MaresWare Suite, primarily for the "subheaders" for many of the file types here.