File types with extensions that start with the letter L

File Extention	File Type	Description
.l	Audio	Left Audio Channel File
.l	Developer	Lex Source File
.l	Data	Game of Life File
.l01	Disk Image	EnCase Logical Evidence File
.l3d	Game	Black & White Graphics File
.l4d	Settings	Cinema 4D Layout File
.l6t	Data	Line 6 Tone File
.la	Audio	Lossless Audio File
.lab	Page Layout	WordPerfect Label Definition File
.laby	Game	Laby Level File
.laccdb	Data	Microsoft Access Lock File
.lan	GIS	ERDAS LAN File
.lang	Game	Minecraft Language File
.lang	Settings	Skype Language File
.las	Data	LIDAR Data Exchange File
.lasso	Web	Lasso Database-Driven Web Page
.lastlogin	Encoded	Minecraft User Credential File
.latex	Text	LaTeX Document
.lay	Settings	Rhino 3D Layer State File
.lay	Misc	DVD Studio Pro Layout File
.lay	Data	Tecplot Layout File
.lay	Settings	MAME Layout File
.layout	Settings	Code::Blocks Workspace Layout File
.layout	Compressed	LayOut Document
.layoutdesigner	Data	QuickBooks Layout Designer File
.lbc	Web	Cloaked Affiliate Link Builder Saved Link
.lbi	Developer	Dreamweaver Library Item
.lbl	Data	NiceLabel Template File
.lbl	Page Layout	dBASE Label File
.lbl	Page Layout	Now Contact Label Template
.lbm	Raster Image	Deluxe Paint Bitmap Image
.lbr	Compressed	LU Library Archive
.lbs	Developer	Omnis Library
.lbt	Text	FoxPro Label Memo
.lbu	Settings	Cloaked Affiliate Link Builder Settings File
.lbx	Data	FoxPro Label File
.lcb	Backup	Living Cookbook Backup File
.lcc	Settings	Capture One Lens Cast Correction File
.lcd	Data	ABBYY Language File
.lcd	Disk Image	CDSpace Emulated Disk Image
.lcf	CAD	ArchiCAD Library Container File
.lck	Misc	Program Lock File
.lcm	Data	Lipikar Custom Map File
.lcn	Encoded	License File
.ld2	Data	Lingoes Dictionary File
.ldb	Misc	Microsoft Access Lock File
.ldb	Game	Max Payne Level File
.ldf	Data	Lingoes Dictionary Source File
.ldf	Data	SQL Server Transaction Log File
.ldif	Data	LDAP Data Interchange Format File
.ldm	3D Image	VolumeViz Multi-Resolution Volume File
.ldr	CAD	LDraw Model File
.lds	Developer	Binutils LD Linker Script
.ldt	CAD	Eulumdat Formatted Luminaire Data File
.ldw	Game	Virtual Villagers Saved Game File
.lef	Data	LEN Exchange Format File
.legal	Misc	DaveTech Legal Document
.lemon	Compressed	LemonShare.net Download
.less	Web	LESS Style Sheet
.letter	Misc	Undeliverable Mail File
.lex	Data	Adobe Linguistic Library Data File
.lfo	Settings	Alchemy Low Frequency Oscillator Presets File
.lfp	Data	IPRO LFP File
.lfs	System	Samsung Phone params.lfs File
.lgc	Database	SimpleK Database File
.lgc	Data	WordPerfect DTD Compiler Logic File
.lgf	Data	PMSCAN Log File
.lgh	Data	HMI Historical Log File
.lgi	Data	Multimedia Logic File
.lgl	Data	Large Graph Layout Edge File
.lgl	Game	LeechGet Download List
.lgo	Developer	Logo Instructions File
.lgp	Game	Final Fantasy Media Archive
.lgt	Settings	Let's Go! Theme File
.lha	Compressed	LHARC Compressed Archive
.lhr	Data	Quicken Financial Life for Mac File
.lhs	Developer	Literate Haskell Script
.li3d	CAD	Live Interior 3D Document
.lib	Data	Generic Data Library
.lib	Data	Finale Library
.library-ms	System	Windows Library Description File
.lic	Misc	Software License File
.licensekey	Misc	iPartition License Key File
.licenses	Developer	Visual Studio Licensed Classes File
.licx	Developer	Visual Studio License File
.lid	Misc	Kodak EasyShare Album File
.lif	Data	LEGO Digital Designer Assets File
.lif	Data	TurboTax Information Archive
.lif	Raster Image	Leica Image File
.life	Data	LIGHT File
.lily	Settings	PCSX2 LilyPad Configuration File
.lin	CAD	AutoCAD Linetype File
.link	Misc	iPod Link File
.linx	Misc	iPod Links Folder
.lip	Game	Real Virtuality Lip Sync File
.lip	Game	Bethesda Softworks Lip Sync File
.lis	Developer	VAX Program Listing
.lis	Text	SQR Output File
.lisp	Developer	Lisp Source Code File
.list	Data	APT List File
.list	Developer	JAR Index File
.lit	Developer	Literate Haskell Script
.lit	Developer	Lit Source Code File
.lit	eBook	eBook File
.livecode	Developer	LiveCode Stack File
.livereg	Data	Symantec Antivirus Session File
.liveupdate	Data	Symantec LiveUpdate File
.lix	Data	Logos Library System File
.lix	Data	ExtendSim Simulation Software Library
.lizd	CAD	Live Interior 3D Compressed Document
.ljp	Raster Image	Lossless JPEG Image
.ll	Game	List & Label Preview File
.llb	Data	LabVIEW Library File
.llm	3D Image	Linden Lab Mesh File
.llx	Backup	LabVIEW VI Library Backup File
.lmk	Vector Image	Sothink Logo Maker Image
.lms	Data	LenMus Score File
.lmu	Game	RPG Maker Map File
.lmx	Data	Landmark Exchange File
.lnd	3D Image	3D Landscape File
.lng	Data	Language Application Support File
.lng	Data	AVG Language File
.lng	Plugin	Winamp Language File
.lng	Plugin	Acrobat Language Plug-in
.lng	Data	MAME Language File
.lnk	System	Windows File Shortcut
.lnst	Settings	Adobe InDesign Line Presets File
.lnt	Developer	PC-lint/FlexeLint Configuration File
.lnt	Data	LiveNote Case File
.lnt	Text	Laego Note Taker File
.lnx	Compressed	Commodore 64 Lynx Archive
.lnx	Disk Image	Atari Lynx ROM
.lo	Executable	Interleaf Compiled Lisp File
.loaders	Settings	GTK+ Loaders File
.loc	Data	GPS Location File
.localstorage	Data	WebKit Local Storage Data File
.lock	Game	Minecraft World Lock File
.lock	Misc	Lock File
.lockfile	System	Mac OS X PLIST Lock File
.lod	Game	Heroes of Might and Magic 3 Graphics File
.lof	Audio	Audacity File List
.log	Text	Log File
.log	Data	AntiVir Report Log File
.log1	System	Windows Registry Hive Log File
.log2	System	Windows Registry Hive Log 2 File
.logic	Audio	Logic Pro Project File
.logonvista	Misc	LogonStudio Windows Vista Logon Screen
.logonxp	Misc	LogonStudio Windows XP Logon Screen
.lol	Developer	LOLCODE Source Code FIle
.look	Settings	SpeedGrade Look File
.loov	Misc	Smadav Virus Definitions File
.lop	Settings	MasterCook Layout File
.love	Game	LÖVE Game File
.lp	3D Image	Lightscape Preparation File
.lp2	Text	iLEAP Word Processing Document
.lp7	Data	LP7 Digitally Signed File
.lpb	Game	LaserTank Replay File
.lpd	System	LPD Daemon Print Permissions File
.lpd	System	Lookout Protocol Driver File
.lpdb	Data	Librarian Pro Database File
.lpdf	Page Layout	Localized PDF File
.lpk	GIS	ArcGIS Layer Package
.lpk	Data	Tecplot Layout Package
.lpmd	Data	LPMD Molecular Data File
.lpp	Data	LabelPrint Project File
.lproj	Developer	Localized Project Folder
.lps	3D Image	Bryce Leaf Shape File
.lqr	Compressed	SQ Compressed LBR Archive
.lqt	Audio	Liquid Audio File
.lrc	Misc	Lyrics File
.lrcat	Data	Adobe Photoshop Lightroom Catalog File
.lrdata	Data	Adobe Photoshop Lightroom Data File
.lrdb	Developer	Photoshop Lightroom Database
.lrec	Video	Inter-Tel Web Conference Recording
.lrf	Game	League of Legends Replay File
.lrf	eBook	Sony Portable Reader File
.lrf	Developer	Microsoft Linker Response File
.lrplugin	Plugin	Photoshop Lightroom Plug-in
.lrs	Misc	Check Point License Request File
.lrs	eBook	Librie Reader Source File
.lrsmcol	Settings	Photoshop Lightroom Smart Collection Settings File
.lrtemplate	Settings	Adobe Photoshop Lightroom Template
.lrv	Video	Low Resolution Video File
.lrwebengine	Plugin	Photoshop Lightroom Web Gallery File
.lrx	eBook	Sony Portable Reader File
.ls	Executable	LightWave LScript File
.ls3	Data	Band-in-a-Box Third-Party Styles File
.lsd	Game	RPG Maker Game Save File
.lsf	Video	Streaming Media Format
.lsf	Data	Logos Library System File
.lsl	Data	LightScribe Label
.lsn	Misc	Finale Lesson File
.lso	Audio	Logic Audio Project
.lsp	Developer	Lisp Program Source Code File
.lsp	Data	LANsurveyor Poll List
.lsproj	Developer	Visual Studio LightSwitch Project
.lsr	Data	LANsurveyor Report
.lst	Page Layout	Now Contact List Template
.lst	Data	LightScribe Label Template
.lst	Text	Data List
.lst	Text	FoxPro Documenting Wizard List
.lst	System	GRUB Boot List File
.lsu	Data	LANsurveyor Map
.lsw	Game	RPG Maker Saved Game File
.lsx	Video	Streaming Media Shortcut
.lt2	3D Image	Poser Light Set File
.ltb	Developer	LithTech Binary File
.ltf	Misc	Frogans Shortcut File
.ltf	Page Layout	Laser App Temp Form File
.ltg	Game	LaserTank Graphics File
.ltr	Text	Letter File
.ltx	Text	LaTeX Document
.ltx	Game	S.T.A.L.K.E.R. Properties File
.ltz	3D Image	Compressed Poser Light Set File
.lua	Developer	Lua Source File
.lucidcolorset	Data	Lucid Color Set File
.lucidsnippet	Developer	Lucid Snippet File
.lue	Text	Norton LiveUpdate Log File
.luf	Text	Lipikar Uniform Format File
.lut	Data	RadioRA Essentials Project Database
.lutx	Data	RadioRA 2 Essentials Project Database
.luxb	Game	Lux Map File
.lva	Settings	Logitech Video Effects Avatar File
.lvf	Settings	Logitech Video Effects File
.lvivt	Encoded	Lvivtotoro Encrypted Game File
.lvix	Video	Lightworks Video Index File
.lvl	Game	Game Level File
.lvm	Data	LabVIEW Measurement File
.lvp	Audio	Avaya Voice Player Audio File
.lvw	Data	Livewire Document
.lw4	Data	Lightwright File
.lwd	Data	Lightworks Data File
.lwfn	Font	Adobe Type 1 Mac Font File
.lwo	3D Image	LightWave 3D Object File
.lwp	Text	Lotus Word Pro Document
.lws	3D Image	LightWave 3D Scene File
.lwtp	Misc	LimeWire Theme Pack
.lwv	Audio	Linguistically Enhanced Sound File
.lxa	Misc	Microsoft Speech Lexicon File
.lxcp	Settings	LCARS x32 Color Profile
.lxf	3D Image	LEGO Digital Designer Model File
.lxf	Data	LEN Exchange Format File
.lxfml	Text	LEGO Digital Designer XML File
.lxo	3D Image	Luxology modo 3D Image
.lxsopt	Settings	Liquid XML Studio Project Options File
.lxsproj	Developer	Liquid XML Studio Project File
.ly	Data	LilyPond File
.lyc	CAD	bestIMAGE Compressed Design File
.lyr	CAD	bestIMAGE Design File
.lyr	Misc	ArcView Layer File
.lyt	Text	TurboTax Install Log File
.lyt	Data	Adminsoft Document Layout File
.lyt	Settings	Xcalibur Layout File
.lyt	Settings	vanBacsco's Karaoke Player Skin File
.lyx	Text	LyX Document
.lz	Compressed	Lzip Compressed File
.lzh	Compressed	LZH Compressed File
.lzm	Compressed	Slax Module
.lzma	Compressed	LZMA Compressed File
.lzo	Compressed	LZO Compressed File
.lzx	Compressed	Amiga LZX Compressed File