各类文件头标识

一时失言乱红尘 2022-12-30 07:44 130阅读 0赞

<table> 
 <tbody> 
 <tr> 
 <td> 扩展名 </td> 
 <td> 文件头标识（HEX） </td> 
 <td> 文件描述 </td> 
 </tr> 
 <tr> 
 <td> 123 </td> 
 <td> 00 00 1A 00 05 10 04 </td> 
 <td> Lotus 1-2-3 spreadsheet (v9) file </td> 
 </tr> 
 <tr> 
 <td> 3gg; 3gp; 3g2 </td> 
 <td> 00 00 00 nn 66 74 79 70 33 67 70 </td> 
 <td> 3rd Generation Partnership Project 3GPP (nn=0x14) &nbsp; and 3GPP2 (nn=0x20) multimedia files </td> 
 </tr> 
 <tr> 
 <td> 7z </td> 
 <td> 37 7A BC AF 27 1C </td> 
 <td> 7-ZIP compressed file </td> 
 </tr> 
 <tr> 
 <td> aba </td> 
 <td> 00 01 42 41 </td> 
 <td> Palm Address Book Archive file </td> 
 </tr> 
 <tr> 
 <td> abi </td> 
 <td> 41 4F 4C 49 4E 44 45 58 </td> 
 <td> AOL address book index file </td> 
 </tr> 
 <tr> 
 <td> aby; idx </td> 
 <td> 41 4F 4C 44 42 </td> 
 <td> AOL database files: address book (ABY) and user &nbsp; configuration data (MAIN.IDX) </td> 
 </tr> 
 <tr> 
 <td> accdb </td> 
 <td> 00 01 00 00 53 74 61 6E 64 61 72 64 20 41 43 45 20 &nbsp; 44 42 </td> 
 <td> Microsoft Access 2007 file </td> 
 </tr> 
 <tr> 
 <td> ACM </td> 
 <td> 4D 5A </td> 
 <td> MS audio compression manager driver </td> 
 </tr> 
 <tr> 
 <td> ADF </td> 
 <td> 44 4F 53 </td> 
 <td> Amiga disk file </td> 
 </tr> 
 <tr> 
 <td> adx </td> 
 <td> 03 00 00 00 41 50 50 52 </td> 
 <td> Lotus Approach ADX file </td> 
 </tr> 
 <tr> 
 <td> AIFF </td> 
 <td> 46 4F 52 4D 00 </td> 
 <td> Audio Interchange File </td> 
 </tr> 
 <tr> 
 <td> ain </td> 
 <td> 21 12 </td> 
 <td> AIN Compressed Archive File </td> 
 </tr> 
 <tr> 
 <td> ami </td> 
 <td> 5B 76 65 72 5D </td> 
 <td> Lotus Ami Pro </td> 
 </tr> 
 <tr> 
 <td> amr </td> 
 <td> 23 21 41 4D 52 </td> 
 <td> Adaptive Multi-Rate ACELP (Algebraic Code Excited &nbsp; Linear Prediction) Codec, commonly audio format with GSM cell phones </td> 
 </tr> 
 <tr> 
 <td> ANI </td> 
 <td> 52 49 46 46 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> API </td> 
 <td> 4D 5A 90 00 03 00 00 00 </td> 
 <td> Acrobat plug-in </td> 
 </tr> 
 <tr> 
 <td> arc </td> 
 <td> 1A 0x </td> 
 <td> LH archive file, old version(where x = 0x2, 0x3, &nbsp; 0x4, 0x8 or 0x9 for types 1-5, respectively) </td> 
 </tr> 
 <tr> 
 <td> arc </td> 
 <td> 41 72 43 01 </td> 
 <td> FreeArc compressed file </td> 
 </tr> 
 <tr> 
 <td> arj </td> 
 <td> 60 EA </td> 
 <td> ARJ Compressed Archive </td> 
 </tr> 
 <tr> 
 <td> ARJ </td> 
 <td> 60 EA 27 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> ART </td> 
 <td> 4A 47 03 0E 00 00 00 </td> 
 <td> AOL ART file </td> 
 </tr> 
 <tr> 
 <td> ART </td> 
 <td> 4A 47 04 0E 00 00 00 </td> 
 <td> AOL ART file </td> 
 </tr> 
 <tr> 
 <td> asf </td> 
 <td> 30 26 B2 75 8E 66 CF 11 </td> 
 <td> Windows Media </td> 
 </tr> 
 <tr> 
 <td> asf; wma; wmv </td> 
 <td> 30 26 B2 75 8E 66 CF 11 A6 D9 00 AA 00 62 CE 6C </td> 
 <td> Microsoft Windows Media Audio/Video File(Advanced &nbsp; Streaming Format) </td> 
 </tr> 
 <tr> 
 <td> asx </td> 
 <td> 3C </td> 
 <td> Advanced Stream redirector file </td> 
 </tr> 
 <tr> 
 <td> au </td> 
 <td> 2E 73 6E 64 </td> 
 <td> SoundMachine Audio File NeXT/Sun Microsystems μ-Law audio file </td> 
 </tr> 
 <tr> 
 <td> avi </td> 
 <td> 41 56 49 20 </td> 
 <td> Audio Video Interleave (AVI) </td> 
 </tr> 
 <tr> 
 <td> AX </td> 
 <td> 4D 5A </td> 
 <td> Library cache file </td> 
 </tr> 
 <tr> 
 <td> AX </td> 
 <td> 4D 5A 90 00 03 00 00 00 </td> 
 <td> DirectShow filter </td> 
 </tr> 
 <tr> 
 <td> bag </td> 
 <td> 41 4F 4C 20 46 65 65 64 62 61 67 </td> 
 <td> AOL and AIM buddy list file </td> 
 </tr> 
 <tr> 
 <td> BAS </td> 
 <td> 20 20 20 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> bin </td> 
 <td> 42 4C 49 32 32 33 51 </td> 
 <td> Thomson Speedtouch series WLAN router firmware </td> 
 </tr> 
 <tr> 
 <td> bmp </td> 
 <td> 42 4D </td> 
 <td> Windows Bitmap </td> 
 </tr> 
 <tr> 
 <td> BMP </td> 
 <td> 42 4D 3E </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> bz; bz2 </td> 
 <td> 42 5A 68 </td> 
 <td> BZIP Archive </td> 
 </tr> 
 <tr> 
 <td> BZ2; TAR.BZ2; TBZ2; TB2 </td> 
 <td> 42 5A 68 </td> 
 <td> bzip2 compressed archive </td> 
 </tr> 
 <tr> 
 <td> CAB </td> 
 <td> 49 53 63 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> CAB; HDR </td> 
 <td> 49 53 63 28 </td> 
 <td> Install Shield v5.x or 6.x compressed file </td> 
 </tr> 
 <tr> 
 <td> CAB </td> 
 <td> 4D 53 43 46 </td> 
 <td> Microsoft CAB File Format </td> 
 </tr> 
 <tr> 
 <td> cat </td> 
 <td> 30 </td> 
 <td> Microsoft security catalog file </td> 
 </tr> 
 <tr> 
 <td> CBD </td> 
 <td> 43 42 46 49 4C 45 </td> 
 <td> WordPerfect dictionary file (unconfirmed) </td> 
 </tr> 
 <tr> 
 <td> CCD </td> 
 <td> 5B 43 6C </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> cdr </td> 
 <td> CDR </td> 
 <td> Corel Draw </td> 
 </tr> 
 <tr> 
 <td> CDR </td> 
 <td> 45 4C 49 54 45 20 43 6F 6D 6D 61 6E 64 65 72 20 </td> 
 <td> Elite Plus Commander saved game file </td> 
 </tr> 
 <tr> 
 <td> CDR, DVF </td> 
 <td> 4D 53 5F 56 4F 49 43 45 </td> 
 <td> Sony Compressed Voice File </td> 
 </tr> 
 <tr> 
 <td> CHI; CHM </td> 
 <td> 49 54 53 46 </td> 
 <td> Microsoft Compiled HTML Help File </td> 
 </tr> 
 <tr> 
 <td> CHM </td> 
 <td> 49 54 53 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> CLB </td> 
 <td> 43 4D 58 31 </td> 
 <td> Corel Binary metafile </td> 
 </tr> 
 <tr> 
 <td> CLB </td> 
 <td> 43 4F 4D 2B </td> 
 <td> COM+ Catalog file </td> 
 </tr> 
 <tr> 
 <td> cnt </td> 
 <td> 3A 42 61 73 65 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> COM, DLL, DRV, EXE, PIF, QTS, QTX, SYS </td> 
 <td> 4D 5A </td> 
 <td> Windows/DOS executable file </td> 
 </tr> 
 <tr> 
 <td> COM </td> 
 <td> 4D 5A EE </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> COM </td> 
 <td> E9 3B 03 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> CPE </td> 
 <td> 46 41 58 43 4F 56 45 52 2D 56 45 52 </td> 
 <td> Microsoft Fax Cover Sheet </td> 
 </tr> 
 <tr> 
 <td> CPL </td> 
 <td> 4D 5A </td> 
 <td> Control panel application </td> 
 </tr> 
 <tr> 
 <td> CPT </td> 
 <td> 43 50 54 37 46 49 4C 45 </td> 
 <td> Corel Photopaint file </td> 
 </tr> 
 <tr> 
 <td> CPT </td> 
 <td> 43 50 54 46 49 4C 45 </td> 
 <td> Corel Photopaint file </td> 
 </tr> 
 <tr> 
 <td> CPX </td> 
 <td> 5B 57 69 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> cru; crush </td> 
 <td> 43 52 55 53 48 </td> 
 <td> CRUSH Archive File </td> 
 </tr> 
 <tr> 
 <td> CRU </td> 
 <td> 43 52 55 53 48 20 76 </td> 
 <td> Crush compressed archive </td> 
 </tr> 
 <tr> 
 <td> CRW </td> 
 <td> 49 49 1A 00 00 00 48 45 41 50 43 43 44 52 02 00 </td> 
 <td> Canon digital camera RAW file </td> 
 </tr> 
 <tr> 
 <td> CTF </td> 
 <td> 43 61 74 61 6C 6F 67 20 33 2E 30 30 00 </td> 
 <td> WhereIsIt Catalog file </td> 
 </tr> 
 <tr> 
 <td> CUR </td> 
 <td> 00 00 02 00 01 00 20 20 </td> 
 <td> Windows cursor file </td> 
 </tr> 
 <tr> 
 <td> dat </td> 
 <td> 03 </td> 
 <td> MapInfo Native Data Format </td> 
 </tr> 
 <tr> 
 <td> dat </td> 
 <td> 1A 52 54 53 20 43 4F 4D 50 52 45 53 53 45 44 20 49 &nbsp; 4D 41 47 45 20 56 31 2E 30 1A </td> 
 <td> Runtime Software disk image </td> 
 </tr> 
 <tr> 
 <td> dat </td> 
 <td> 41 56 47 36 5F 49 6E 74 65 67 72 69 74 79 5F 44 61 &nbsp; 74 61 62 61 73 65 </td> 
 <td> AVG6 Integrity database file </td> 
 </tr> 
 <tr> 
 <td> DAT </td> 
 <td> 43 52 45 47 </td> 
 <td> Windows 9x registry hive </td> 
 </tr> 
 <tr> 
 <td> DAT </td> 
 <td> 43 6C 69 65 6E 74 20 55 72 6C 43 61 63 68 65 20 4D &nbsp; 4D 46 20 56 65 72 20 </td> 
 <td> IE History DAT file </td> 
 </tr> 
 <tr> 
 <td> DAT </td> 
 <td> 45 52 46 53 53 41 56 45 44 41 54 41 46 49 4C 45 </td> 
 <td> Kroll EasyRecovery Saved Recovery State file </td> 
 </tr> 
 <tr> 
 <td> DAT </td> 
 <td> 49 6E 6E 6F 20 53 65 74 75 70 20 55 6E 69 6E 73 74 &nbsp; 61 6C 6C 20 4C 6F 67 20 28 62 29 </td> 
 <td> Inno Setup Uninstall Log file </td> 
 </tr> 
 <tr> 
 <td> db </td> 
 <td> 00 06 15 61 00 00 00 02 00 00 04 D2 00 00 10 00 </td> 
 <td> Netscape Navigator (v4) database file </td> 
 </tr> 
 <tr> 
 <td> DB </td> 
 <td> 44 42 46 48 </td> 
 <td> Palm Zire photo database </td> 
 </tr> 
 <tr> 
 <td> db </td> 
 <td> 08 </td> 
 <td> dBASE IV or dBFast configuration file </td> 
 </tr> 
 <tr> 
 <td> db3 </td> 
 <td> 03 </td> 
 <td> dBASE III file </td> 
 </tr> 
 <tr> 
 <td> db4 </td> 
 <td> 04 </td> 
 <td> dBASE IV data file </td> 
 </tr> 
 <tr> 
 <td> dba </td> 
 <td> 00 01 42 44 </td> 
 <td> Palm DateBook Archive file </td> 
 </tr> 
 <tr> 
 <td> dbx </td> 
 <td> CF AD 12 FE </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> dbx </td> 
 <td> CF AD 12 FE C5 FD 74 6F </td> 
 <td> Outlook Express </td> 
 </tr> 
 <tr> 
 <td> dci </td> 
 <td> 3C 21 64 6F 63 74 79 70 </td> 
 <td> AOL HTML mail file </td> 
 </tr> 
 <tr> 
 <td> dcx </td> 
 <td> 3A DE 68 B1 </td> 
 <td> DCX Graphic File </td> 
 </tr> 
 <tr> 
 <td> DDB </td> 
 <td> 00 01 00 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> dib </td> 
 <td> 42 4D </td> 
 <td> device-independent bitmap image </td> 
 </tr> 
 <tr> 
 <td> DLL </td> 
 <td> 4D 5A 90 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> DMP </td> 
 <td> 4D 44 4D 50 93 A7 </td> 
 <td> Windows minidump file </td> 
 </tr> 
 <tr> 
 <td> DMS </td> 
 <td> 44 4D 53 21 </td> 
 <td> Amiga DiskMasher compressed archive </td> 
 </tr> 
 <tr> 
 <td> doc </td> 
 <td> 0D 44 4F 43 </td> 
 <td> DeskMate Document file </td> 
 </tr> 
 <tr> 
 <td> doc </td> 
 <td> 12 34 56 78 90 FF </td> 
 <td> MS Word 6.0 </td> 
 </tr> 
 <tr> 
 <td> doc </td> 
 <td> 31 BE 00 00 00 AB 00 00 </td> 
 <td> MS Word for DOS 6.0 </td> 
 </tr> 
 <tr> 
 <td> doc </td> 
 <td> 7F FE 34 0A </td> 
 <td> MS Word </td> 
 </tr> 
 <tr> 
 <td> dot; ppt; xla; ppa; pps; pot; msi; sdw; db </td> 
 <td> D0 CF 11 E0 </td> 
 <td> MS Office/OLE2 </td> 
 </tr> 
 <tr> 
 <td> doc; dot; xls; xlt; xla; ppt; apr ;ppa; pps; pot; msi; &nbsp; sdw; db </td> 
 <td> D0 CF 11 E0 A1 B1 1A E1 </td> 
 <td> MS Compound Document v1 or Lotus Approach APR file </td> 
 </tr> 
 <tr> 
 <td> DPL </td> 
 <td> 4D 5A 50 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> DRV </td> 
 <td> 4D 5A 16 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> drw </td> 
 <td> 07 </td> 
 <td> A common signature and file extension for many &nbsp; drawing programs. </td> 
 </tr> 
 <tr> 
 <td> drw </td> 
 <td> 01 FF 02 04 03 02 </td> 
 <td> Micrografx vector graphic file </td> 
 </tr> 
 <tr> 
 <td> ds4 </td> 
 <td> 4D 47 58 20 69 74 70 64 </td> 
 <td> Micrografix Designer 4 </td> 
 </tr> 
 <tr> 
 <td> DSN </td> 
 <td> 4D 56 </td> 
 <td> CD Stomper Pro label file </td> 
 </tr> 
 <tr> 
 <td> dsp </td> 
 <td> 23 20 4D 69 63 72 6F 73 6F 66 74 20 44 65 76 6 56C &nbsp; 6F 70 65 72 20 53 74 75 64 69 6F </td> 
 <td> Microsoft Developer Studio project file </td> 
 </tr> 
 <tr> 
 <td> dss </td> 
 <td> 02 64 73 73 </td> 
 <td> Digital Speech Standard (Olympus, Grundig, &amp; &nbsp; Phillips) </td> 
 </tr> 
 <tr> 
 <td> dtd </td> 
 <td> 07 64 74 32 64 64 74 64 </td> 
 <td> DesignTools 2D Design file </td> 
 </tr> 
 <tr> 
 <td> dtd </td> 
 <td> 3C 21 45 4E 54 49 54 59 </td> 
 <td> XML DTD </td> 
 </tr> 
 <tr> 
 <td> DVR </td> 
 <td> 44 56 44 </td> 
 <td> DVR-Studio stream file </td> 
 </tr> 
 <tr> 
 <td> dwg </td> 
 <td> 41 43 31 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> dwg </td> 
 <td> 41 43 31 30 </td> 
 <td> Generic AutoCAD drawing NOTES on AutoCAD file headers: The 0x41-43-31-30 &nbsp; (AC10) is a generic header, occupying the first four bytes in the file. The &nbsp; next two bytes give further indication about the version or subtype: 0x30-32 (02) — AutoCAD R2.5 0x30-33 (03) — AutoCAD R2.6 0x30-34 (04) — AutoCAD R9 0x30-36 (06) — AutoCAD R10 0x30-39 (09) — AutoCAD R11/R12 0x31-30 (10) — AutoCAD R13 (subtype 10) 0x31-31 (11) — AutoCAD R13 (subtype 11) 0x31-32 (12) — AutoCAD R13 (subtype 12) 0x31-33 (13) — AutoCAD R14 (subtype 13) 0x31-34 (14) — AutoCAD R14 (subtype 14) 0x31-35 (15) — AutoCAD R2000 0x31-38 (18) — AutoCAD R2004 0x32-31 (21) — AutoCAD R2007 </td> 
 </tr> 
 <tr> 
 <td> Enn (where nn are numbers) </td> 
 <td> 45 56 46 </td> 
 <td> EnCase evidence file </td> 
 </tr> 
 <tr> 
 <td> ECO </td> 
 <td> 2A 50 52 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> elf </td> 
 <td> 7F 45 4C 46 01 01 01 00 </td> 
 <td> ELF Executable </td> 
 </tr> 
 <tr> 
 <td> emf </td> 
 <td> 01 00 00 00 58 00 00 00 </td> 
 <td> Extended (Enhanced) Windows Metafile Format, printer &nbsp; spool file </td> 
 </tr> 
 <tr> 
 <td> eml </td> 
 <td> 44 65 6C 69 76 65 72 79 2D 64 61 74 65 3A </td> 
 <td> Email </td> 
 </tr> 
 <tr> 
 <td> EML </td> 
 <td> 46 72 6F 6D 20 20 20 </td> 
 <td> A commmon file extension for e-mail files. &nbsp; Signatures shown here are for Netscape, Eudora, and a generic signature, &nbsp; respectively. EML is also used by Outlook Express and QuickMail. </td> 
 </tr> 
 <tr> 
 <td> EML </td> 
 <td> 46 72 6F 6D 20 3F 3F 3F </td> 
 <td> A commmon file extension for e-mail files. &nbsp; Signatures shown here are for Netscape, Eudora, and a generic signature, &nbsp; respectively. EML is also used by Outlook Express and QuickMail. </td> 
 </tr> 
 <tr> 
 <td> EML </td> 
 <td> 46 72 6F 6D 3A 20 </td> 
 <td> A commmon file extension for e-mail files. &nbsp; Signatures shown here are for Netscape, Eudora, and a generic signature, &nbsp; respectively. EML is also used by Outlook Express and QuickMail. </td> 
 </tr> 
 <tr> 
 <td> EML </td> 
 <td> 52 65 63 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> enc </td> 
 <td> 00 5C 41 B1 FF </td> 
 <td> Mujahideen Secrets 2 encrypted file </td> 
 </tr> 
 <tr> 
 <td> enl </td> 
 <td> [32 byte offset] 40 40 40 20 00 00 40 40 40 40 </td> 
 <td> EndNote Library File </td> 
 </tr> 
 <tr> 
 <td> eps </td> 
 <td> 25 21 50 53 </td> 
 <td> Adobe EPS File </td> 
 </tr> 
 <tr> 
 <td> eps </td> 
 <td> 25 21 50 53 2D 41 64 6F 62 65 </td> 
 <td> Postscript </td> 
 </tr> 
 <tr> 
 <td> eps </td> 
 <td> 25 21 50 53 2D 41 64 6F 62 65 2D 33 2E 30 20 45 50 &nbsp; 53 46 2D 33 20 30 </td> 
 <td> Adobe encapsulated PostScript file (If this &nbsp; signature is not at the immediate beginning of the file, it will occur early in &nbsp; the file, commonly at byte offset 30) </td> 
 </tr> 
 <tr> 
 <td> EPS </td> 
 <td> C5 D0 D3 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> eth </td> 
 <td> 1A 35 01 00 </td> 
 <td> GN Nettest WinPharoah capture file </td> 
 </tr> 
 <tr> 
 <td> evt </td> 
 <td> 30 00 00 00 4C 66 4C 65 </td> 
 <td> Windows Event Viewer file </td> 
 </tr> 
 <tr> 
 <td> evt </td> 
 <td> 03 00 00 00 C4 66 C4 56 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> EVTX </td> 
 <td> 45 6C 66 46 69 6C 65 00 </td> 
 <td> Windows Vista event log file </td> 
 </tr> 
 <tr> 
 <td> exe; dll; drv; vxd; sys; ocx; vbx </td> 
 <td> 4D 5A </td> 
 <td> Win32 Executable </td> 
 </tr> 
 <tr> 
 <td> exe; dll; drv; vxd; sys; ocx; vbx </td> 
 <td> 4D 5A </td> 
 <td> Win16 Executable </td> 
 </tr> 
 <tr> 
 <td> exe; com; 386; ax; acm; sys; dll; drv; flt; fon; ocx; &nbsp; scr; lrc; vxd; cpl; x32 </td> 
 <td> 4D 5A </td> 
 <td> Executable File </td> 
 </tr> 
 <tr> 
 <td> EXE, DLL, OCX, OLB, IMM, IME </td> 
 <td> 4D 5A 90 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> fli </td> 
 <td> 00 11 AF </td> 
 <td> FLIC Animation file </td> 
 </tr> 
 <tr> 
 <td> flt </td> 
 <td> 00 01 01 </td> 
 <td> OpenFlight 3D file </td> 
 </tr> 
 <tr> 
 <td> FLT </td> 
 <td> 4D 5A 90 00 03 00 00 00 </td> 
 <td> Audition graphic filter file (Adobe) </td> 
 </tr> 
 <tr> 
 <td> FLV </td> 
 <td> 46 4C 56 01 </td> 
 <td> Flash video file </td> 
 </tr> 
 <tr> 
 <td> fm </td> 
 <td> 3C 4D 61 6B 65 72 46 69 6C 65 20 </td> 
 <td> Adobe FrameMaker file </td> 
 </tr> 
 <tr> 
 <td> fm3 </td> 
 <td> 00 00 1A 00 07 80 01 00 </td> 
 <td> Lotus 123 v3 FMT file </td> 
 </tr> 
 <tr> 
 <td> fmt </td> 
 <td> 20 00 68 00 20 0 </td> 
 <td> Lotus 123 v4 FMT file </td> 
 </tr> 
 <tr> 
 <td> FNT </td> 
 <td> 43 48 41 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> FON </td> 
 <td> 4D 5A </td> 
 <td> Font file </td> 
 </tr> 
 <tr> 
 <td> GBC </td> 
 <td> 87 F5 3E </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> gid </td> 
 <td> 3F 5F 03 00 </td> 
 <td> Windows Help Index File </td> 
 </tr> 
 <tr> 
 <td> GID </td> 
 <td> 4C 4E 02 00 </td> 
 <td> Windows Help index file </td> 
 </tr> 
 <tr> 
 <td> GIF </td> 
 <td> 47 49 46 38 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> gif </td> 
 <td> 47 49 46 38 37 61 </td> 
 <td> Graphics interchange format file (GIF 87A) </td> 
 </tr> 
 <tr> 
 <td> gif </td> 
 <td> 47 49 46 38 39 61 </td> 
 <td> Graphics interchange format file (GIF89A) </td> 
 </tr> 
 <tr> 
 <td> GTD </td> 
 <td> 7B 50 72 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> GX2 </td> 
 <td> 47 58 32 </td> 
 <td> Show Partner graphics file (not confirmed) </td> 
 </tr> 
 <tr> 
 <td> gz; tar; tgz </td> 
 <td> 1F 8B </td> 
 <td> Gzip Archive File </td> 
 </tr> 
 <tr> 
 <td> gz; tgz </td> 
 <td> 1F 8B 08 </td> 
 <td> GZ Compressed File </td> 
 </tr> 
 <tr> 
 <td> hap </td> 
 <td> 91 33 48 46 </td> 
 <td> HAP Archive File </td> 
 </tr> 
 <tr> 
 <td> HDMP </td> 
 <td> 4D 44 4D 50 93 A7 </td> 
 <td> Windows heap dump file </td> 
 </tr> 
 <tr> 
 <td> hdr </td> 
 <td> 23 3F 52 41 44 49 41 4E 43 45 0A </td> 
 <td> adiance High Dynamic Range image file </td> 
 </tr> 
 <tr> 
 <td> HLP </td> 
 <td> 3F 5F 03 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> hlp </td> 
 <td> 3F 5F 03 00 </td> 
 <td> Windows Help file </td> 
 </tr> 
 <tr> 
 <td> HLP </td> 
 <td> 4C 4E 02 00 </td> 
 <td> Windows Help file </td> 
 </tr> 
 <tr> 
 <td> hlp </td> 
 <td> [7 byte offset] 00 00 FF FF FF FF </td> 
 <td> Windows Help file </td> 
 </tr> 
 <tr> 
 <td> hqx </td> 
 <td> 28 54 68 69 73 20 66 69 6C 65 </td> 
 <td> Macintosh BinHex 4 Compressed Archive </td> 
 </tr> 
 <tr> 
 <td> hqx </td> 
 <td> 28 54 68 69 73 20 66 69 6C 65 20 6D 75 73 74 20 62 &nbsp; 65 20 63 6F 6E 76 65 72 74 65 64 20 77 69 74 68 20 42 69 6E 48 65 78 20 </td> 
 <td> Macintosh BinHex 4 Compressed Archive </td> 
 </tr> 
 <tr> 
 <td> HTM </td> 
 <td> 3C 21 44 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> htm; html </td> 
 <td> 3C 21 44 4F 43 54 </td> 
 <td> HyperText Markup Language 3 </td> 
 </tr> 
 <tr> 
 <td> htm; html </td> 
 <td> 3C 48 54 4D 4C 3E </td> 
 <td> HyperText Markup Language 2 </td> 
 </tr> 
 <tr> 
 <td> htm; html </td> 
 <td> 3C 68 74 6D 6C 3E </td> 
 <td> HyperText Markup Language 1 </td> 
 </tr> 
 <tr> 
 <td> html </td> 
 <td> 68 74 6D 6C 3E </td> 
 <td> HTML </td> 
 </tr> 
 <tr> 
 <td> ico </td> 
 <td> 00 00 01 00 00 </td> 
 <td> Icon File </td> 
 </tr> 
 <tr> 
 <td> ico </td> 
 <td> 00 00 01 00 01 00 20 20 </td> 
 <td> Icon File </td> 
 </tr> 
 <tr> 
 <td> IFF </td> 
 <td> 46 4F 52 4D </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> IFO </td> 
 <td> 44 56 44 </td> 
 <td> DVD info file </td> 
 </tr> 
 <tr> 
 <td> IME </td> 
 <td> 4D 5A 90 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> img </td> 
 <td> 00 01 00 08 00 01 00 01 01 </td> 
 <td> Ventura Publisher/GEM VDI Image Format Bitmap file </td> 
 </tr> 
 <tr> 
 <td> IMG </td> 
 <td> 00 FF FF </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> IMM </td> 
 <td> 4D 5A 90 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> ind </td> 
 <td> 41 4F 4C 49 44 58 </td> 
 <td> AOL client preferences/settings file (MAIN.IND) </td> 
 </tr> 
 <tr> 
 <td> ISO </td> 
 <td> 43 44 30 30 31 </td> 
 <td> ISO-9660 CD Disc Image (This signature usually &nbsp; occurs at byte 8001, 8801, or 9001.) </td> 
 </tr> 
 <tr> 
 <td> ivr </td> 
 <td> 2E 52 45 43 </td> 
 <td> RealPlayer video file (V11 and later) </td> 
 </tr> 
 <tr> 
 <td> JAR </td> 
 <td> 4A 41 52 43 53 00 </td> 
 <td> JARCS compressed archive </td> 
 </tr> 
 <tr> 
 <td> jar </td> 
 <td> 5F 27 A8 89 </td> 
 <td> JAR Archive File </td> 
 </tr> 
 <tr> 
 <td> jpg; jpeg </td> 
 <td> FF D8 FF </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> jpg; jpe; jpeg </td> 
 <td> FF D8 FF E0 00 </td> 
 <td> JPG Graphic File </td> 
 </tr> 
 <tr> 
 <td> jpg; jpe; jpeg </td> 
 <td> FF D8 FF FE 00 </td> 
 <td> JPG Graphic File </td> 
 </tr> 
 <tr> 
 <td> KGB </td> 
 <td> 4B 47 42 5F 61 72 63 68 20 2D </td> 
 <td> KGB archive </td> 
 </tr> 
 <tr> 
 <td> KOZ </td> 
 <td> 49 44 33 03 00 00 00 </td> 
 <td> Sprint Music Store audio file (for mobile devices) </td> 
 </tr> 
 <tr> 
 <td> LDB </td> 
 <td> 42 49 4C </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> lha </td> 
 <td> 2D 6C 68 35 2D </td> 
 <td> LHA Compressed </td> 
 </tr> 
 <tr> 
 <td> lha; lzh </td> 
 <td> [2 byte offset] 2D 6C 68 </td> 
 <td> Compressed archive file </td> 
 </tr> 
 <tr> 
 <td> LHP </td> 
 <td> 3F 5F 03 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> lhp </td> 
 <td> 3F 5F 03 00 </td> 
 <td> Windows Help File </td> 
 </tr> 
 <tr> 
 <td> lib </td> 
 <td> 21 3C 61 72 63 68 3E 0A </td> 
 <td> Unix archiver (ar) files and Microsoft Program &nbsp; Library Common Object File Format (COFF) </td> 
 </tr> 
 <tr> 
 <td> LIB </td> 
 <td> 2A 24 20 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> LIT </td> 
 <td> 49 54 4F 4C 49 54 4C 53 </td> 
 <td> Microsoft Reader eBook file </td> 
 </tr> 
 <tr> 
 <td> LNK </td> 
 <td> 4C 00 00 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> lnk </td> 
 <td> 4C 00 00 00 </td> 
 <td> Windows Shortcut (Link File) </td> 
 </tr> 
 <tr> 
 <td> lnk </td> 
 <td> 4C 00 00 00 01 14 02 </td> 
 <td> Windows Link File </td> 
 </tr> 
 <tr> 
 <td> LNK </td> 
 <td> 4C 00 00 00 01 14 02 00 </td> 
 <td> Windows shortcut file </td> 
 </tr> 
 <tr> 
 <td> log </td> 
 <td> 2A 2A 2A 20 20 49 6E 73 74 61 6C 6C 61 74 69 6F 6E &nbsp; 20 53 74 61 72 74 65 64 20 </td> 
 <td> Symantec Wise Installer log file </td> 
 </tr> 
 <tr> 
 <td> lzh </td> 
 <td> lh </td> 
 <td> Lz compression file </td> 
 </tr> 
 <tr> 
 <td> lwp </td> 
 <td> 57 6F 72 64 50 72 6F </td> 
 <td> Lotus WordPro v9 </td> 
 </tr> 
 <tr> 
 <td> m3u </td> 
 <td> 23 45 58 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> m4a </td> 
 <td> 00 00 00 20 66 74 79 70 4D 34 41 20 00 00 00 00 </td> 
 <td> Apple Lossless Audio Codec file </td> 
 </tr> 
 <tr> 
 <td> m4a; m4v </td> 
 <td> 00 00 00 20 66 74 79 70 4D 34 41 20 00 00 00 00 </td> 
 <td> QuickTime M4A/M4V file </td> 
 </tr> 
 <tr> 
 <td> manifest </td> 
 <td> 3C 3F 78 6D 6C 20 76 65 72 73 69 6F 6E 3D </td> 
 <td> Windows Visual Stylesheet XML file </td> 
 </tr> 
 <tr> 
 <td> MAR </td> 
 <td> 4D 41 52 31 00 </td> 
 <td> Mozilla archive </td> 
 </tr> 
 <tr> 
 <td> MAR </td> 
 <td> 4D 41 52 43 </td> 
 <td> Microsoft/MSN MARC archive </td> 
 </tr> 
 <tr> 
 <td> MAR </td> 
 <td> 4D 41 72 30 00 </td> 
 <td> MAr compressed archive </td> 
 </tr> 
 <tr> 
 <td> max </td> 
 <td> D0 CF 11 </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> mdb </td> 
 <td> 00 01 00 00 53 74 61 6E 64 61 72 64 20 4A 65 74 20 &nbsp; 44 42 </td> 
 <td> Microsoft Access file </td> 
 </tr> 
 <tr> 
 <td> mdb; mda; mde; mdt </td> 
 <td> 53 74 61 6E 64 61 72 64 20 4A </td> 
 <td> MS Access </td> 
 </tr> 
 <tr> 
 <td> MDF </td> 
 <td> 00 FF FF </td> 
 <td>&nbsp;</td> 
 </tr> 
 <tr> 
 <td> mdf </td> 
 <td> 00 FF FF FF FF FF FF FF FF FF FF 00 00 02 00 01 </td> 
 <td> Alcohol 120% CD image </td> 
 </tr> 
 <tr> 
 <td> mdf </td> 
 <td> 01 0F 00 00 </td> 
 <td> Microsoft SQL Server 2000 database </td> 
 </tr> 
 <tr> 
 <td> MDI </td> 
 <td> 45 50 </td> 
 <td> Microsoft Document Imaging file</td> 
 </tr> 
 </tbody> 
</table>