List Of All Extensions And Filetypes - L

This is an easy approach from me to give and describe each and every filetype and extension as much as possible.
here is the list for the information about various filetypes and extensions starting from alphabet L

Extension	Information
L	Cliq Accessories Datebook Lock File
L	Game of Life Pattern File
l	LEX Program File
L	LISP Program File
L	WATCOM Wlink Directive
L	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
L	Xcode Core Lex Program (Apple Inc.)
L	IRIS Editor Literary Format File (eurobraille)
L	Link Instructions
L2L	IBM Voice Type Language Addword File
L2P	IBM Voice Type Language Addword File
L2R	Lineage II Replay (NC Interactive, Inc.)
L3G	Compressed Archive
L4D	Cinema 4D Layout (MAXON Computer GmbH)
L5K	RSLogix 5000 (Rockwell Automation)
L64	64LAN Image File
L6T	GearBox Tone File (Line 6, Inc.)
L95	Library File
LA	Lightscape Animation
LA	Netscape Packetized Audio
LA	LA Lossless Compressed Audio
LA	GNU Libtool Library (GNU Project - Free Software Foundation)
LA1	Liquid Audio Player Resource DLL (Geneva Media, LLC)
LAA	LucasArts AdLib Audio File Format
LAB	Outlaws Container File (LucasArts Entertainment Company LLC)
LAB	Q+E Mailing Label
LAB	NCSS/SOLO Data File
LAB	NGSofts.com LAB Editor (NGSofts.com LAB Editor)
LAB	Complete Works Label (Toplevel Computing)
LAB	Mailing Labels
LAB	BAR-ONE Lite Label (ZIH Corp.)
LABELS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LABLES	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LAD	Daylon Leveller Animation Data
LAF	Essential Taceo User License Activation File (Essential Security Software, Inc.)
LAM	Netscape Media Player Streaming Audio Metafile
LAMP	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LAN	ERDAS IMAGINE LAN Sensor Data (Leica Geosystems , LLC)
LAN	Novell NetWare LAN Drivers
LAND	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LANDSAT	EOSAT Landsat Thematic Mapper Bitmap Data
LANG	Skype Language File (Skype Technologies S.A.)
LANG	CDex Language File
LANGUAGE	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LAO	Epson Smart Panel File (Epson Corporation)
LAPTOP	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LAR	Liquid Audio Player Registration File (Geneva Media, LLC)
LARG	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LARGE	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LARRY	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LAS	Log ASCII Standard (LAS) File (The Canadian Well Logging Society (CWLS))
LAS	Light-O-Rama Animated Sequence (Light-O-Rama)
LASE	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LASER	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LASSO	Lasso Studio Database Driven Web Page (Blue World Communications, Inc.)
LAST	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LAT	LATEX
LAT	Crossword Express Lattice File (AUS-PC-SOFT)
LATEST	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LATEX	LaTeX Source Document (LaTeX3 Project)
LAUNCH	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LAUNCHER	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LAV	Liquid Audio Player Voucher File (Geneva Media, LLC)
LAV	Listlabl File
LAVAITTE	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LAVS	Liquid Audio Player Secure Streaming Voucher File (Geneva Media, LLC)
LAW	eLawForms Form File (E*Law Publishing Limited)
LAWS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LAY	Pro/ENGINEER (PTC)
LAY	Mastercook Layout File (Sierra)
LAY	Rhino 3D Layer Text File (Robert McNeel & Associates)
LAY	MiTek Engineering File
LAY	Lightscape Layer State
LAY	Applause Word Chart Layout
LAY	Track Builder Simulation Compiler Code (Signal Computer Consultants)
LAYER1	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LAYOUT	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LAYOUT	Premiere Layout (Adobe Systems Incorporated)
LAYUP	MSC.Patran Laminate Modeler Composites Ply Layup Information (MSC.Software Corporation)
LA_	TI Databook File
LB	LB Packer Sound File
LB	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LB	Novanew File
LBA	Little Billy's Album Photo Album Project File (Little Billy's Album, Inc.)
LBA	Liberty BASIC File
LBD	Grafic FLI File
LBD	Life Balance User Data (Llamagraphics, Inc.)
LBE	Life Balance XML-based Data Exchange (Llamagraphics, Inc.)
LBG	dBASE IV Label Generator
LBI	Fifa 2001 Data Feart Legal Screeen
LBI	Dreamweaver Library File
LBK	VersaPro Local Logic Block Backup
LBL	British National Bibliography File
LBL	Daqarta Extended Audio Data (Interstellar Research)
LBL	Label
LBL	Creatacard Label Project (Broderbund)
LBL	Markin Label File (Markin)
LBL	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LBM	Deluxe Paint Bitmap
LBM	Deluxe Paint (Electronic Arts, Inc.)
LBM	Graphic, Sound
LBM	XLib Linear Bitmap Graphic
LBM	Amiga Interleaved Bitmap Format (Amiga)
LBO	dBASE IV Ordered Labels
LBR	EAGLE Layout Editor Library (CadSoft Computer, Inc.)
LBR	CP/M Information File
LBR	Compressed Archive File
LBR	1-2-3 Display Driver (IBM)
LBR	Omnis7 Application File (Omnis Software)
LBS	Omnis Studio Application Library (Raining Data Corporation)
LBT	Foxpro Label Memo (Microsoft Corporation)
LBU	Cloaked Affiliate Link Builder Saved Settings File (Curry K. Software)
LBV	Tonline Ob4hbci Layout Print File
LBW	CCP Log Server Utility Log File (CCP)
LBX	Foxpro Label (Microsoft Corporation)
LBXADD	Libronix DLS Addin
LBXALV	Logos Bible Software Series X Passage In All Versions
LBXCBV	Logos Bible Software Series X Copy Bible Verses Style
LBXCIT	Libronix DLS Citation Format
LBXCMP	Libronix DLS Company Information
LBXCOL	Libronix DLS Resource Collection
LBXCTB	Libronix DLS Custom Toolbar
LBXDAT	Libronix DLS Data File
LBXDTP	Libronix DLS Data Type
LBXGYQ	Libronix DLS Graphical Query
LBXLBK	Libronix DLS License Backup
LBXLIC	Libronix DLS Licenses File
LBXLLS	Libronix DLS Resource
LBXNOT	Libronix DLS Notes
LBXOEB	Libronix DLS Resource
LBXPDF	Libronix DLS Resource
LBXPLN	Logos Bible Software Series X Bible Reading Plan
LBXPLP	Logos Bible Software Series X Parallel Passage
LBXPLV	Logos Bible Software Series X Parallel Bible Versions
LBXPRF	Libronix DLS Preferences
LBXPRL	Logos Bible Software Series X Prayer List
LBXRAS	Libronix DLS Resource Association
LBXRTP	Libronix DLS Resource Type
LBXSDG	Logos Bible Software Series X Sentence Diagram
LBXSHL	Libronix DLS Shell
LBXUPD	Libronix DLS Update Script
LBXVRS	Logos Bible Software Series X Verse List
LBXWDL	Libronix DLS Word List
LBXWKS	Libronix DLS Workspace
LBZ	Leibniz Mathematical Word Processor
LC	Textbridge Classic Bin File
LCA	SimpleFormat Changeables Graphic
LCB	Concept2 LogCard Utility LogCard Backup Image (Concept2, Inc.)
LCB	Living Cookbook File
LCC	Capture One PRO Lens Cast Calibration File (Phase One)
LCC	IBM Voice Type Language Newuser File
LCD	LeoCAD Project (BT Software)
LCD	ABBYY Finereader 4.0 Sprint (ABBYY Software House)
LCD	CDspace CD Emulator
LCE	LockCrypt Database (Harry Jennerway)
LCE	SimuPLC Electric Commands Language Source Program (André Luiz Barbosa)
LCF	HP-95LX Datacomm Script File
LCF	Linker Control File
LCH	IBM Works for OS/2 Chart
LCH	PagePath Technologies LAUNCH! File
LCI	IBM Voice Type Language Newuser File
LCK	Inventor Locking File (Autodesk, Inc.)
LCK	ACT! Database Locking File (Best Software CRM Division)
LCK	Dreamweaver Lock File (Adobe Systems Incorporated)
LCK	Pegasus Mail Mailbox Lock File (David Harris)
LCK	Help 2 Lock File (Microsoft Corporation)
LCK	Paradox Lock File (Corel)
LCK	PageMaker Database (Adobe Systems Incorporated)
LCK	Lock File
LCK	Frontpage-related File (Microsoft Corporation)
LCL	Checklist Long-term Checklist (Checklist à long terme) (Francis Gagné)
LCL	FTP Software Data
LCM	Lipikar Data (Santanu Ghosh,)
LCN	LCNWindow GUS Virtual Drive File (Honeywell International Inc.)
LCN	WordPerfect Dictionary File (Corel Corporation)
LCO	Railroad Tycoon 3 Locomotive Properties (PopTop Software Inc.)
LCS	L0phtCrack (@stake)
LCS	ACT! History File (Best Software CRM Division)
LCT	Elsie Electrical Filter Design (Tonne Software)
LCW	Lucid 3-D Spreadsheet
LD	Telix Long Distance Codes
LD	PC-Bibliothek User Options (Bibliographisches Institut & F.A. Brockhaus AG)
LD	Paradox Language Driver (Corel)
LD1	dBASE Overlay File
LD2	Lingoes Dictionary (Lingoes Project)
LD2	SediMeter Field Measurement File (Lindorm, Inc.)
LDA	LaserData
LDATA	JSim Line Data Format (University of Washington)
LDB	Access Lock File (Microsoft Corporation)
LDB	RPG Maker 2000/2003 Database (Enterbrain)
LDB	IBM Works for OS/2 Data Filer Database
LDB	Settler for Windows Temporary File
LDB	VisiTrax Music Library Database (Synapsa Productions)
LDB	TrueVector Log Database
LDC	Steuer2001 File
LDD	Laser Dispatch Data
LDF	LDIF Script
LDF	SQL Server Transaction Log File (Microsoft Corporation)
LDF	ProWORX Nxt Logic Data (Schneider Electric)
LDF	LuraDocument File
LDF	IBM Works for OS/2 Data Filer Form
LDF	enotate Layered Data Format File (Informal Software, D.I.P., Ischian Systems)
LDF	TriboIndenter Air Indent Electrostatic Force Constant Calibration (Hysitron Incorporated)
LDF	Geoworks Glue Library Definition
LDFX	LogPlot 7 LogDeesign Format File (RockWare, Inc.)
LDI	LDIF File
LDIF	LDAP Data Interchange Format
LDL	Corel Paradox Delivered Library
LDL	OzWin CompuServe E-mail/Forum Access Download Request
LDP	Label Designer Plus DELUXE Data File (CAM Development)
LDR	Yamaha Live Drum Kits (Yamaha Corporation of America)
LDR	Symantec Ghost Template File (Symantec Corporation)
LDR	LDraw Model File (Estate of James Jessiman)
LDS	Corel40 Programs Data File
LDS	Trane Trace Load
LDS	LOUDNESS Sound System
LDS	Laser Dispatch Script
LDW	Virtual Villagers Data
LDX	Liquid Studio Liquid Executable Bytecode (Global Heavy Industries)
LD_	Visc15 Adressen Setup File
LE	DOS/4GW PM 32X DOS Extender Executable Image
LE	Opera Binary Voice-related File (Opera Software ASA)
LE$	BASIC VB
LEECHGET	LeechGet Download Manager Temporary File (Martin Albiez)
LEF	Lenex XML Data (GeoLogix AG)
LEFT	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LEFTY	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LEG	Legacy Graphic Format
LEGIT	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LEMONS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LEN	PlatePrep
LEN	Sheffield Dictionary File
LEN	XNBC V8 Biological Neural Network Simulation Workstation Axon Lengths
LENGTH	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LENTH	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LEP	Label and Envelope Designer Plus 2000
LES	Learn Lesson File
LES	Mklesson Lesson File
LES	Logitech Entertainment Game Profile
LES	Lesson File
LESPAUL	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LET	Letter
LET	Maestro Icons File
LET	Genesis 2000 (Genesis 2000, Inc.)
LET	Creatacard Letterhead Project (Broderbund)
LET	Nuke Randomic Life Generator
LETTER	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LETTERS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LEV	NetHack Level File
LEV	Worms Armageddon Map
LEV	Liero Level
LEV	Worms World Party Map
LEV	Return to Wonderland Classic Version Level File (Midnight Synergy)
LEVEL	Homeworld Level Data (Sierra Entertainment, Inc.)
LEVEL	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
lex	lex or flex File
LEX	Acrobat (Adobe Systems Incorporated)
LEX	Lexmark Printer Install File
LEX	HP-Basic Language Extension
LEX	Lexicon (Dictionary)
LEY	Notes 5 Full Text Index (IBM)
LEY	Leylines Map File or Saved Game (Crystal Shard)
LE_	BASIC VB Compressed Disk1 File
LF	SoftwareKey License File
LFA	LifeForm File
LFA	IncrediMail Default Animations (IncrediMail Ltd.)
LFD	LucasArts Games Resource (Lucasfilm Entertainment Company Ltd.)
LFF	LucasFilm Format
LFG	LensForge Lens Design Specification (Ripplon Software Inc.)
LFL	LucasFilm Library
LFM	Lazarus Lazarus Form Designer File (Free Pascal Lazarus Team)
LFM	LifeForm File
LFP	LifeForm File
LFP	TrialDirector Load File (inData Corporation)
LFP	IPRO View Load File (IPRO Tech Inc.)
LFQ	LeechFTP Queue File
LFT	3D Studio Loft File (Autodesk, Inc.)
LFT	ChiWriter Laser Printer Font
LFXM	FaceMail Text to Speech E-mail
LG	Archive Handler by George Lyapko
LG	Arhangel Compressed Archive
LG	Logo Procedure Definition
LG2	HotMux Thermocouple Data Log File (DCC Corporation)
LG?	LoseThos Graphic File (Terry A. Davis)
LGA	Windows Applog File
LGC	Screen Saver Toolkit (Stardust Software)
LGC	Logicator File
LGC	Corel Layout Designer Logic File for SGML
LGC	SimpleK Database (Prosystech inc.)
LGC	Program Use Log File
LGC	Windows Application Log
LGC	Audio
LGD	Windows Application Log
LGE	Windows Application Log
LGF	Windows Application Log
LGF	LeechGet Download Manager FTP Queue (Martin Albiez)
LGF	Logomotion Graphic File (Logotron Ltd.)
LGF	ProWORX Nxt Log Book Note (Schneider Electric)
LGF	Legal Eagle Text File
LGG	Windows Application Log
LGH	Windows Application Log
LGH	Pro/ENGINEER (PTC)
LGI	Multimedia Logic Digital Logic Diagram (Softronics Inc.)
LGI	Windows Application Log
LGJ	Windows Application Log
LGK	Windows Application Log
LGL	LeechGet Download Manager Download Queue (Martin Albiez)
LGL	Windows Application Log
LGM	Windows Application Log
LGN	Windows Application Log
LGO	MSWLogo Saved Logo Design (Softronics, Inc.)
LGO	Modern ListGeo Output
LGO	Windows Logo Driver (Microsoft Corporation)
LGO	SuperFax Header/Footer Logo
LGP	Logotron SuperLogo File
LGP	Final Fantasy Game Archive (Square Enix Co., Ltd)
LGP	Windows Application Log
LGP	Logitech G15 Gaming Keyboard Profile File (Logitech)
LGQ	Windows Application Log
LGR	Elasto Mania Character Skin
LGR	Windows Application Log
LGS	Windows Application Log
LGT	Urban Chaos Game File
LGT	The Sims Lighting File (Electronic Arts (Maxis))
LGT	Age of Mythology World Lighting Effect (Ensemble Studios Microsoft)
LGX	Logistix Spreadsheet
LGZ	Windows Application Log
LH	Morph File
LHA	Compressed Archive File
LHN	Vosub Encrypted Subtitles (Qsubs)
LHP	Electric Butterfly
LHS	Literate Haskell Source File
LHTS	The Movies Editor Text String Database (The Movies Workshop)
LHW	Compressed Amiga Archive File
LHZ	LHA Compressed Archive File
LI$	MS Compressed Library
LIA	P-CAD Schematic Library (Altium Limited)
LIB	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LIB	Game Maker Drag & Drop Actions Library (YoYo Games Limited)
LIB	AS/400 Physical File Library (IBM)
LIB	OrCAD Library Model (Cadence Design Systems, Inc.)
LIB	PSpice Library File (Cadence Design Systems, Inc.)
lib	Common-Lisp Library
LIB	Sibelius House Style File (Sibelius Software Ltd)
LIB	Scholar's Aid Library File
LIB	Program Library Common Object File Format (COFF) (Microsoft Corporation)
LIB	Library Used by an Application
LIB	Finale NotePad Music Library (MakeMusic, Inc.)
LIB	Greeting Card Library
LIB1	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LIB2	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LIB3	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LIBRARIES	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LIBRARY	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LIBS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LIC	ESET NOD32 Antivirus License File (ESET, LLC)
LIC	FLEXnet Manager License File (Acresso Software Inc.)
LIC	PETRA Log Image Calibration File (IHS Inc.)
LIC	Borland License File (Borland Software Corporation)
LIC	License File
LICENSE	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LICK4	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LID	Dylan Library Interchange Description
LID	Maple V Setup File (Maplesoft, a Division of Waterloo Maple Inc.)
LID	Quicken 2002 Deluxe File (Intuit Inc.)
LID	LabelVision Auto Incrementing Value File
LID	Light Field Description File
LID	Lextek Language Identification Module (Lextek International)
LID	WinDVD File
LID	Scholar's Aid Backup File
LIF	TurboTax Information Archive (Intuit)
LIF	HP Logical Interchange Format File
LIF	Homeworld Layered Image Format File (Sierra)
LIF	Knowledge Dynamics Install Archive
LIF	Game of Life Pattern File
LIF	CA Clipper Installer Compressed File Archive
LIF	Compressed Archive File
LIFE	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LIFE	Game of Life Pattern File
LIGH	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LIGHT	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LIGHTNING	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LILLIES	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LIM	Limit Compressed Archive
LIN	VAX Program Listing
LIN	AutoCAD Linetype Definition (Autodesk, Inc.)
LIN	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LIN	ArcView ARC/INFO Lineset Symbol File (ESRI)
LIN	Medlin Accounting Current Period Invoice Detail (Medlin Accounting)
LINDBERG	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LINEEDIT	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LINES	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LINK	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LINKTP	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LINO	LinoLab Source Code (Linova)
LINUX	File for Linux
LIP	SLIP
LIQ	Liquid Tracker Song/Module
LIQ	CollegeBAR Bartending Software Liquor Cabinet
LIQCRYS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LIR	Liram Application Save Application Setting (Liram Ltd.)
LIS	Compiler Listing File
LIS	Structured Query Reporting (SQR) Output
LIS	VAX Program Listing
lisp	LISP Source Code
LISPM	LISP Machine File Bitmap
LIST	BlindWrite (VSO-Software)
LIST	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LISTER	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LISTING	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LISTLAYOUT	Adium Contact List Layout (The Adium Team)
LISTS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LISTTHEME	Adium Contact List Theme (The Adium Team)
LIT	Quake Colored Light Data
LIT	AMOS Executable File (Alpha Micro)
LIT	Reader eBook File (Microsoft Corporation)
LIT	Movie
LIV	LiveMotion SWF Movie (Adobe Systems Incorporated)
LIV	Yamaha Live Voice File (Yamaha Corporation of America)
LIV	Living Actor Actor File (Cantoche)
LIVEREG	Symantec Anti-Virus Update Session (Symantec Corporation)
LIVESUBSCRIBE	Symantec Anti-Virus Update Catalog (Symantec Corporation)
LIVEUPDATE	Norton Anti-Virus Update Settings File (Symantec Corporation)
LIX	ExtendSim Library File (Imagine That Inc.)
LIX	Libronix DLS Resource
LIZ	Comprressed List File
LI_	Rukus File
LJ	HP LaserJet Graphic Bitmap
LJ	Text File for HP LJ II Printer
LJB	Lightjockey Backup Database (Martin Professional A/S)
LJBDOWNLOAD	l-JB Download Manager Download Link File
LK	Advanced Revelation and OpenInsight Primary Data Storage Space (Revelation Software)
LKB	Faverly Data Recorder Output
LKD	Pioneer OEL Screensaver (Pioneer Electronics (USA) Inc.)
LKO	Outlook Express Linked Object (Microsoft Corporation)
LKP	Systems Management Server (SMS) Lookup File (Microsoft Corporation)
LKS	WinAmp Links File
LKT	Lookup Table
LKU	T9000 Linkable Unit
LKY	Trojan Troj/Zlob-AGB
LL	List and Label Printer Setup File (combit GmbH)
LL	Links Language Template File
LL3	LapLink III Document File
LLB	LabVIEW Application Program Library (National Instruments Corporation)
LLC	LapLink Saved Connection File
LLD	Links Language Data File
LLG	LADSIM Ladder Logic Diagram (Bytronic Ltd)
LLP	Digital Chart of the World Data File
LLP	VersaPro Local Logic Block
LLP	Lotto Logic 2002 Lottery Configuration File (Timersoft)
LLSD	Linden Lab Structured Data (Linden Research, Inc.)
LLT	Digital Chart of the World Data File
LLV	Lizard Safeguard License File (LockLizard Ltd)
LLX	Laplink Exchange Agent
LLX	Tonline Ob4hbci File
LLX	List and Label Extension Object (combit GmbH)
LM8	Picture File
LMA	Netscape Packetized Audio
LMA	Learning Mobile Author (LMA) Project File (Hot Lava Software)
LMD	ABBYY Finereader 4.0 Sprint (ABBYY Software House)
LMD	Tune Smithy List of Modes for a Musical Scale
LME	LegglessMusicEditor Sound/Module
LMH	Memory Hacking Software Memory File (Outdated) (Shawn (L. Spiro) Wilcoxen)
LMI	HomePortal Firmware Recovery File (2Wire, Inc.)
LMK	Sprint-Layout Macro (ABACOM Ingenieurbüro)
LML	LOGML File
LMP	Quake File
LMP	Doom Recorded Demo File (Id Software, Inc.)
LMR	QuickBooks Loan Manager File (Intuit Inc.)
LMS	Light-O-Rama Lighting Control File (Light-O-Rama)
LMT	RPG Maker 2000/2003 Map Tree (Enterbrain)
LMU	RPG Maker 2000/2003 Map File (Enterbrain, Inc.)
LMV	Flash Source Code (Adobe Systems Incorporated)
LMV	LEGO CAD Movie (The LEGO Group)
LMV	LiveSwif Movie File
LMW	LMW Examples File
LMX	Lomax Software Game File
ln	UNIX lint File
LN03	DEC LN03+ Sixel Bitmap
LNB	Logomanager File
LND	3D Landscape Data
LNED	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LNF	Oyoaha lookandfeel Interface Elements (Oyoaha)
LNG	DeepBurner Language File (ASTONSOFT Co.)
LNG	Language File
LNG	Launch-n-Go Shared Keyboard Shortcuts (Tethys Solutions, LLC.)
LNG	Lahey FORTRAN Language Extension
LNG	Jasmine Language File
LNG	Diablo II (Blizzard Entertainment)
LNG	Acrobat Language Plug-in (Adobe Systems Incorporated)
LNG	SourceEdit Language Definition
LNG	NRG SDR Language File
LNG	Lingo Script File
LNGTH	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LNK	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LNK	Linker File
LNK	Windows Shortcut File (Microsoft Corporation)
LNK	XNBC V8 Biological Neural Network Simulation Workstation Link Configuration File
LNK	Advanced Revelation Database File (Revelation Software)
LNK2	Program Neighborhood Explorer Shortcut (Citrix Systems, Inc.)
LNM	WordPerfect SGML Alias (Corel Corporation)
LNR	Lunar Invasion Saved Game
LNS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LNS	LinkStash Bookmark File
LNT	ARMACON Data File (LNT Engenharia [LNTinfopage])
LNT	LiveNote Case File (LiveNote Technologies)
LNX	Atari Lynx ROM Image (Atari)
LNX	Lynx Project File (Zippety Software)
LO	GNU Libtool Library Object File (GNU Project - Free Software Foundation)
LO	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LO4	SeeYou Flight Data (Naviter)
LOAD	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOADER	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOADS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOAN	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOANS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOANX	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOC	Localisation String Resource Header File
LOC	Suppose Locations File
LOC	MicroSim PCBoard Component Locations Report
LOC	EasyGPS TerraByte Location File (TopoGrafix)
LOCAL	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOCAL	Xset Setup Program Bin File
LOCATOR	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOCK	.NET Framework Database Lock File (Microsoft Corporation)
LOCKED	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOCKED	Softwrap Locked and Encrypted EXE File (Softwrap)
LOCKSMITHING	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOD	A-10 Cuba! Weapons Loadout (Activision, Inc.)
LOD	Homeworld Level Of Detail (Sierra Entertainment, Inc.)
LOD	Load File
LOF	LaTeX Auxiliary File for List Of Figures
LOG	LabVIEW Binary Datalog (National Instruments Corporation)
LOG	PDP-10 Batch Log File
LOG	HijackThis Log File (Trend Micro Incorporated)
LOG	SeeYou Flight Data (Naviter)
LOG	TrialDirector Load File (inData Corporation)
LOG	Pro/ENGINEER (PTC)
LOG	ProWORX Nxt Text Log File (Schneider Electric)
LOG	MS HTMLHelp Log
LOG	Log File
LOG	Wise Installer Log (Symantec Corporation)
LOGIN	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOGO	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOGO2	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOGO3	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOGO4	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOGOFF	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOGON	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOGONVISTA	LogonStudio Vista Logon Image (Stardock Corporation, Inc.)
LOGONXP	LogonStudio Document (Stardock Corporation, Inc.)
LOK	OmniPage Ver 9 File (Nuance Communications, Inc.)
LOK	FileWrangler/ZipWrangler/SecurDesk! Encrypted Archive
LOL	Lolcode Source File (Lolcode)
LOLLY	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LONG	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOO	Sterlingware Fractal Parameter File (Stephen Ferguson)
LOOK	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOOP	Soundtrack Hinted Audio Loop (Apple Inc.)
LOOP	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOOP1	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOOP2	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOOPA6	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOP	Sierra Mastercook Layout File
LOSANGELE	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOT	LaTeX Auxiliary File for List Of Figures
LOUD	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOUD3	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOVE	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOW	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LOW	PDP-10 Low Segment of a Two-Segment Program
LOWSTRINGS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LO_	Systems Management Server (SMS) Renamed Old Log File (Microsoft Corporation)
LP	LaTeX Drawing File (LaTeX3 Project)
LP	FlexRip/B
LP	Lightscape Preparation File
LP	LP88 Linear Programming for the IBM-PC File
LP	NASCAR Racing 2002 Track Configuration Options (Sierra)
LP	Voice Manager Audio Recording (Coby Electronics Corp.)
LP	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LP1	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LP3	Hansen Software Label Printer
LP4	36-Image Converter Encrypted Language Pack (UIC Phoenxsoftware)
LP4	Hansen Software Label Printer
LP7	LP7Signer Digital Signed File (Lex Persona)
LPA	LPA-View Laser Particle Analyser Test Analysis Software
LPAQ	Data Compression Programs Compressed File (Matt Mahoney)
LPB	LP88 Linear Programming for the IBM-PC File
LPB	ProWORX Nxt Logic Pointer (Schneider Electric)
LPC	LivePC Engine Subscription Information (moka5)
LPC	Teko Printer Driver
LPC	Linear Predictive Coding Sound
LPD	LECTURNITY Multimedia Audio/Video/Clips Presentation Document (IMC AG)
LPD	Label Pro Ver. 2.0-3.02 Data File (Avery)
LPD	Helix Nuts and Bolts File
LPD	LogonProcessor Configuration Database (VAI)
LPF	ProWORX Nxt Logic Pointer (Schneider Electric)
LPF	LogicPort LA1034 Logic Analyzer Project (Intronix Test Instruments, Inc.)
LPF	Lytec's Direct Electronic Medical Claims ClaimsDirect
LPG	Lowrey Organ Registration (Setup) File (Lowrey Organ Company)
LPI	Free Pascal Lazarus Project Information File
LPI	Live Pictures
LPJ	SoftwareShield License Manager License Project File (SoftwareShield Technologies Inc.)
LPJ	PASSOLO Localization Project
LPK	Lazarus Lazarus Package File (Free Pascal Lazarus Team)
LPK	License Package
LPL	Darkstone Character Information File
LPN	LVPlan - Planification of Low Voltage Aerial Distribution Networks
LPP	Let's Photo Photo Slideshow (Canopus Co., Ltd.)
LPR	Lazarus Free Pascal Lazarus Project File
LPR	Homeworld (Sierra Entertainment, Inc.)
LPR	LAPRO Source Code File (Marco Mugnatto)
LPROJ	Mac OS X Localized Project Folder
LPT	PDP-10 Line Printer Output
LPT	TrialDirector Load File (inData Corporation)
LPT	LogPlot/LogView Compiled Boring Log (RockWare, Inc.)
LPU	PASSOLO Localization Project
LQ	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LQF	Leech FTP Save Queue File
LQP	Liquid Audio Player Passport File (Geneva Media, LLC)
LQR	Compressed Archive File
LQT	Liquid Audio Player File (Geneva Media, LLC)
LQT	Winamp File
LR	Chaos Desktop Layer List (Chaos systems AB)
LRC	Dance With Intensity
LRC	Lyric File
LRC	StepMania Lyric File (StepMania)
LRC	Intel Video Phone Language Resource Control (Intel Corporation)
LRD	Money Locked Database File (Microsoft Corporation)
LRF	Line Rider 2 Unbound Custom-Drawn In-Game Font (inXile entertainment)
LRF	BroadBand eBook
LRF	C/C++ Linker Response File (Microsoft Corporation)
LRG	Macromedia XRes Multi-resolution Bitmap
LRM	Line Rider 2 Unbound Saved Track (inXile entertainment)
LRM	Encarta Class Server Learning Resource (Microsoft Corporation)
LRP	IBM Works for OS/2 Report
LRP	Line Rider 2 Unbound Puzzle Part (inXile entertainment)
LRP	Linux Router Project Package
LRR	Mercury LoadRunner Test Results File (Mercury Interactive Corporation)
LRS	Language Resource File (Corel)
LRS	Mercury LoadRunner Scenario (Mercury Interactive Corporation)
LRS	Lode Runner 2 Savegame (GT Interactive(now Atari/Infogrames))
LRS	Daylon Leveller Rendition Style
LRS	Lazarus Lazarus Resource File (Free Pascal Lazarus Team)
LRS	Lexar Encrypted File (Lexar Media, Inc.)
LRT	Yacc: Yet Another Compiler-Compiler Log File
LRU	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LRX	BroadBand Secure eBook
LRZ	Lotto Hat File
LS	Links 98 Game File
LS	Lightscape Solution File
LS	Freeware Dictionary Project Data File
LS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LS	Unix ls Directory File
LS1	OzWin CompuServe E-mail/Forum Access Library Listing
LS1	Winhelp Source file
LS1	Cokriging Software VARIO Output File
LS2	Cokriging Software COREG Output File
LSA	Liquid Audio Player Skin File (Geneva Media, LLC)
LSA	LightScape Technologies ASCII Data
LSB	LightScape Technologies Binary Data
LSC	LOGO!Soft Comfort Circuit File (Siemens AG)
LSC	Tune Smithy List of Muscial Scales
LSD	LECTURNITY Presentation File Source Format (IMC AG)
LSD	RPG Maker 2000/2003 Saved Game File (Enterbrain)
LSD	Fifa World Cup Game Data Environment File
LSD	ABBYY Lingvo Non-changaeble System Dictionary (ABBYY Software House)
LSE	Audio Manager (Nokia)
LSF	Totem Cash Profile File
LSF	Streaming Audio/Video File
LSF	Libronix DLS Resource
LSG	LocStudio Glossary (Microsoft Corporation)
LSI	Audio
LSI	Corel Layout Specification Instance SGML
LSL	Daylon Leveller Shape List
LSL	Corel Paradox Saved Library
LSL	Lotus Script Library (IBM)
LSL	Liquid Audio Player Resource DLL (Geneva Media, LLC)
LSLANG	Ad-Aware Language File (Lavasoft)
LSLIDE	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
lsm	Linux Software Map
LSN	Works File (Microsoft Corporation)
LSO	BHV Tonstudio Platin File
LSO	Logic Audio File
LSP	newLISP Source Code (Lutz Mueller)
lsp	Common-Lisp Source Code
LSP	Living Scenes Jigsaw Puzzles
LSP	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LSP	AutoLISP Application Source Code (Autodesk, Inc.)
LSP	Liquid Player Playlist (Liquid Studio)
LSQ	MRS-802 Phrase Loop Formula Data (Zoom Corporation)
LSQ	VAX CRYSTALS Chemical Crystallogaphy File
LSQ	IBM Voice Type Language Addword File
LSQ	CalTech PaleoMag Least Squares Format
LSR	Logos Library System 2.x Standard Reference Definition
LSS	LotusScript Program File
LSS	Legato Spreadsheet
LSSAVE	Memory Hacking Software Memory File (Shawn (L. Spiro) Wilcoxen)
LST	MovieList Deluxe Project/Playlist file (ASW Software)
LST	Orchida Knitting System (Orchida Soft)
LST	IMail Server List Server Mail (Ipswitch, Inc.)
LST	Listing or List
LST	Kaspersky Lab Blacklist File (Kaspersky Lab)
LST	SAS Procedure Output (SAS Institute Inc.)
LST	1st Reader Keyboard Macro
LST	Valve Map Related File (Valve Corporation)
LST	SignIQ Field List (ImpulseLogic)
LST	Oracle Spool File
LST	Family Tree Maker Error File
LST	Ingres Dump List File (Computer Associates International, Inc.)
LST	OzWin CompuServe E-mail/Forum Access Library Listing
LST	Pro/ENGINEER Temporary File (PTC)
LST	Acrobat Font List File (Adobe Systems Incorporated)
LST	PowerPoint View File (Microsoft Corporation)
LST	BPM Studio Play List (ALCATech)
LSW	Golf Swapfiles File
LSW	Technics Keyboard Current Panel File
LSX	Streaming Audio/Video Shortcut
LSZ	Adressmn File
LSZ	LiteStep Installer Theme File (beyondconvention)
LSZ	WinFax (Symantec Corporation)
LS_	Unix ls Directory File
LT	PC LTAS Printer Configuration File
LT	Shape Cut (Laxmi Technologies)
LT2	Curious Labs Poser Lighting File
LTB	Amma Lsb v1.0
LTD	LivingTime Data File (Lifescope Inc.)
LTE	Adressmn
LTF	Frogans Short-cut (STG Interactive SA)
LTG	Lasertank Bitmap Graphics
LTH	Sierra Print Artist Letterhead
LTH	Easy CD Creator Theme File (Sonic Solutions)
LTL	Linear Temporal Logic Formula
LTM	EOSAT Landsat Thematic Mapper Bitmap Data
LTM	Lotus Form (IBM)
LTM	LiteMail Database/Project (Sprika Software)
LTPL	Insight II Layout Template File (Accelrys Software Inc.)
LTR	Letter
LTR	ACT! Letter (Best Software CRM Division)
LTT	MicroImages Text Layout (MicroImages, Inc.)
LTT	HP Library and Tape Tools Log File
LTT	SDR99 Speech Recognition Task Lexical TREC Transcription
LTX	LaTeX Mathematical Text Document
LU	ThoughtWing Library Unit File
LUA	Lua Source (Tecgraf - Computer Graphics Technology Group)
LUA	Lua Player for PSP Script (InsertWittyName)
LUA	Homeworld Generic Lua File (Sierra Entertainment, Inc.)
LUB	Star Wars Game File (Lucasfilm Ltd.)
LUCS	Amaya Tools
LUDI_PSEUDO_PROTEIN	Insight II Exclusion Shell File (Accelrys Software Inc.)
LUF	Lipikar Text (Santanu Ghosh,)
LUL	OzWin CompuServe E-mail/Forum Access Upload
LUMPSUM	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LUN	DB-MAIN Project File (REVER S.A.)
LUNCH	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LUP	OzWin CompuServe E-mail/Forum Access Library Update
LUT	Osiris Prefs Colordir File
LUT	LUT File
LUTE	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LUX	Spectramap Database (Coloritto BV)
LUXB	Lux Saved Map File (Sillysoft)
LV1	Boulder Rash Original Single Level
LV5	Return to Wonderland Deluxe Version Level File (Midnight Synergy)
LV6	Return to Wonderland Platinum Version Level File (Midnight Synergy)
LVA	Logitech Video Effects Avatar and Face Accessory (Logitech)
LVB	Outlaws Binary Mission Files (LucasArts Entertainment Company LLC)
LVD	LPA-View Data File (MP Filtri U.K. Ltd.)
LVF	Logitech Video Effects Avatar and Face Accessory (Logitech)
LVL	Zero Editor Zero Engine Game File (Lucasfilm Ltd.)
LVL	Lode Runner 2 Level/User Level (GT Interactive(now Atari/Infogrames))
LVL	Super Mario Bros X Level File
LVL	Snood Game Level
LVL	Lasertank Level
LVL	Continuum Zone Data (SubSpaceDownloads.com)
LVL	Boulder Rash Original Full Levels
LVL	Parallax Miner Descent/D2 Level Extension Level Extension
LVL	Max Payne Uncompiled Level File (Rockstar Games)
LVM	LabVIEW Measurement (National Instruments Corporation)
LVP	Avaya Voice Player Compressed Voice Audio (Avaya Inc.)
LVP	Lucent Voice Player
LVP	LView Pro Image
LVS	Daylon Leveller Selection Mask
LVT	Outlaws Text Mission Files (LucasArts Entertainment Company LLC)
LVU	Livid Union Project File (Livid Instruments)
LVW	Daylon Leveller View File
LVZ	Continuum Zone Data Graphics (SubSpaceDownloads.com)
LW	Line Work TIFF Bitmap
LW	LightWave (ClearJump)
LW	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LW2	Lightwright Version 2 Show Data File (John McKernon Software)
LW3	Lightwright Version 3 Show Data File (John McKernon Software)
LW4	Lightwright Version 4 Show Data File (John McKernon Software)
LW5	Lightwright Version 5 Show Data File (John McKernon Software)
LWA	Lightwright Automated Action File (John McKernon Software)
LWA	LightWorks Archive (LWA) Material/Scene File (LightWork Design Ltd.)
LWC	Living Word Commentaries Bible File
LWD	LotusWorks Text Document (IBM)
LWF	LuraWave-compressed Graphic File
LWI	LightWorks Image (LightWork Design Ltd.)
LWK	LonghornMax Data File (Cattlesoft, Inc.)
LWL	Lightwright Printed Paperwork Formatting Instructions (John McKernon Software)
LWM	LittleWays Map (hfrmobile)
LWO	LightWave 3D 3D Object (NewTek)
LWO	Tstream Editor Studio Translation Package (Xplanation Language Services)
LWP	Lightwright Dimmer Rack Power Phase Layouts (John McKernon Software)
LWP	Wordpro 96/97 Document (IBM)
LWP	IBM Works for OS/2 Document
LWR	RollerCoaster Tycoon Laser Writing (Atari)
LWS	LightWave 3D 3D Scene File (NewTek)
LWT	Lightwright Attribute List File (John McKernon Software)
LWTP	LimeWire Theme File (Lime Wire LLC.)
LWV	Litewave Audio File (MASTLabs LLC)
LWV	Linguistically Enhanced Sound File (Microsoft Corporation)
LWY	Lightwright Library File (John McKernon Software)
LX	LPEX Customization Command Profile
LXA	Office Speech Lexicon File (Microsoft Corporation)
LXD	Lexacom Data File (Aprobrium Limited)
LXD	eDictionary Reader Dictionary Data File (PPCLINK)
LXF	LEGO CAD Scene File (The LEGO Group)
LXF	Lenex Compressed XML Data (GeoLogix AG)
LXFML	LEGO CAD Digital Designer XML Data (The LEGO Group)
LXG	LEGO CAD PC/Macintosh Exchange Format (The LEGO Group)
LXL	LPEX File Open Command Profile
LXM	Lexacom Mobile PDA Dictation File (Aprobrium Limited)
LXML	Leerling Volg Systeem Leering File (Zoutewelle Media Groep b.v.)
LXN	SeeYou Flight Data (Naviter)
LXO	LaserMaster Font
LXS	LPEX File Save Command Profile
LXV	Lexar Secure II Encrypted Vault (Lexar Media, Inc.)
LXW	Lexacom Talk & Type Dictation File
LY	GNU LilyPond
LY+	DataCAD Plus Layer (DATACAD LLC)
LYNX	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LYR	DataCAD Layer File (DATACAD LLC)
LYR	Lyrics for Audio CD
LYR	Song Lyric File
LYRIX	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LYS	DataCAD Layer Control File (DATACAD LLC)
LYT	Printed Circuit Board Layout File
LYT	DESQview (Symantec Corporation)
LYT	TurboTax Install Log File (Intuit)
LYT	MetaCAM Layout (Metamation, Inc.)
LYT	MicroImages Text Layout (MicroImages, Inc.)
LYT	SignMaking Application Extension
LYX	LyX
LZ	lzip Compressed File (Antonio Diaz Diaz)
LZA	LZA Animation/Video
LZD	Binary Difference File
LZF	3ds Max Lens Effect Flare (Autodesk, Inc.)
LZH	Compressed Archive File
LZM	Slax Add-on Module
LZMA	7-Zip Compressed File (Igor Pavlov)
LZO	lzop Compressed Archive
LZR	Compressed Archive File
LZS	Compressed Archive File
LZS	LARC Compressed File Archive
LZS	Skyroads Data File
LZSS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
LZW	LHWarp Compressed Amiga File Archive
LZW	Compressed Amiga Archive File
LZX	Compressed File
LZX	OpenLaszlo Web Application (Laszlo Systems, Inc.)
LZZZZZZZ	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)