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"Every File Extension in the World"

This is a list of file extension names or suffixes that indicate the format or usage of a file and a brief description of that file extension. In general, if you have the program that uses that file extension, that program can be used to open or otherwise use the file.

Many people have contributed to this list and we thank them! If you know of file extensions that should be added to this list, please e-mail us and we'll add them.

 File Extension Listing for "L":
Browse File Extensions Alphabetically:  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #
LSource code (Lisp)
LLinker directive file (WATCOM wlink)
LSource code (Lex)
LABLabel file (Visual dBase)
LABMailing labels (Microsoft Excel)
LABDatafile (NCSS-SOLO)
LANLoadable module (LAN DLL) (NetWare)
LAYClipart file (Printmaster Gold)
LAYWord Chart layout (APPLAUSE)
LBGLabel generator data (dBase IV)
LBLLabel (Clipper 5)
LBLLabel (dBFast)
LBLLabel (dBase IV)
LBMLinear Bitmap graphics (XLib)
LBMBitmap (DeluxePaint)
LBOCompiled label (dBase IV)
LBRDisplay driver (Lotus 1-2-3)
LBRCompressed archive (LU)
LBTLabels (Microsoft FoxPro)
LBXLabels (Microsoft FoxPro)
LCFLinker control file (Norton Guides compiler)
LCHUsed in a program (unknown) that monitors a network's response time
LCKLockfile (Paradox)
LCLDatafile (FTP)
LCNLection document (WordPerfect for Windows)
LCSData History file (ACT!)
LCTLoader Control File In Oracle Applications Environment
LCWSpreadsheet (Lucid 3-D)
LDLong distance area codes file (Telix)
LD1Overlay file (dBase)
LDBLock file (Microsoft Access)
LDFLibrary definition file (Geoworks Glue)
LDIFStructured text file used for sharing information between E-Mail clients (Microsoft, Netscape and others)
LDLLibrary (Corel Paradox)
LDSLOUDNESS Sound System File
LDTLoader Data File in Oracle Applications Environment
LEGLegacy document
LEMON - File FormatRenamed RAR compressed archive file, opens with WinRAR (password: www.lemonshare.net)
LESSystem game profiles (same as REG file) (Logitec Entertainment)
LETGenesis 2000 mortgage application file
LETLetter (generic)
LETUnknown photo image
LETBroderbund CreataCard Letterhead file
LEVLevel file (NetHack 3.x)
LEXDictionary file (Generic)
LFDData resource file (LucasArts Dark Forces)
LFPLaserForms Plus file (Evergreen)
LFTLaser printer font (ChiWriter)
LFTLoft file (3-D Studios) (DOS)
LGLogo procedure definition (LSRHS Logo)
LGCApplication log file
LGDApplication log file
LGOHeader and footer logo (SuperFax)
LGOStartup logo (Microsoft Windows 3.x-9.x)
LGOLogo file (PaintBrush)
LHACompressed Archive (LHA/LHARC)
LHAAlternate file suffix for LZH
LHWCompressed Amiga archive (LHWARP)
LIBLibrary file (Generic)
LIFCompressed archive (Generic)
LIFLogical Interchange data (Hewlett-Packard)
LIMCompressed archive (LIMIT)
LINInteractive music sequencing data file (Electronic Arts)
LINLine type file (DataCad)
LISListing (VAX)
LISOutput file produced by a Structured Query Reporting (SQR) program
LITeBook file for Microsoft Reader
LIXLogos library system file
LJText file (Hewlett-Packard LaseJet II printer)
LKDatabase file (OpenSight-16 bit)
LKOLinked object (Microsoft Outlook Express Junkmail file)
LL3Document file (LapLink III)
LLXExchange agent (Laplink)
LNKLinker response file (RTLink)
LNKDatafile (Revelation)
LNKShortcut file (Microsoft Windows 9.x)
LNTLiveNote Transcript file
LODLoad file (Generic)
LOGLog file (Generic)
LOKCompressed file (FileWrangler)
LPA document reader used for downloading mortgage closing information (DesertDocs)
LPCPrinter driver (TEKO)
LPDHelix Nuts and Bolts file
LPIInformation file for laser printers (common with some scanning sofware)
LRCVideo phone file (Intel)
LRCLyrics file used by music game emulators
LRFLinker response file (Microsoft C/C++)
LRSLanguage resource file (WordPerfect for Windows)
LSFLogos library system file
LSLScript library (Lotus)
LSLSaved library (Corel Paradox)
LSPAutoLISP, CommonLISP, and other LISP language files
LSSSpreadsheet (Legato)
LSTKeyboard macro (1st Reader)
LSTSAS text output
LSTSpool file (Oracle)
LSTList file (Generic)
LTMForm (Lotus Forms)
LULibrary unit file (ThoughtWing)
LVLMiner Descent/D2 Level extension (Parallax Software)
LWALightwave Scene (version 6 and up)
LWDText document (LotusWorks)
LWFWavelet graphics file (Luratech)
LWLOLayered Object file (Lightwave)
LWOLightwave Object (version 6 and up)
LWOBObject file (Lightwave)
LWPWordpro 96/97 file (Lotus)
LWSCScene file (Lightwave)
LWZLinguistically enhanced sound file (Microsoft)
LYRLayer file (DataCAD)
LZDDifference file for binaries (Ldiff 1.20)
LZHCompressed archive (LH ARC)
LZSData file (Skyroads)
LZSCompressed archive (LARC)
LZWCompressed Amiga archive (LHWARP)
LZXCompressed archive (Generic)
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Browse File Extensions Alphabetically:  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #
Current file name extensions and definitions as of 11/26/2009: 3537

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