File extension	The full name of the file	Popularity
File extension L	Lex Source File
File extension L01	ARC Digitized Raster Graphics file
File extension L3D	Black & White Graphics File
File extension L4D	Cinema 4D Layout File
File extension L6T	Line 6 Tone File
File extension LA	Lossless Audio File
File extension LAB	WordPerfect Label Definition File
File extension LABY	Laby Level File
File extension LACCDB	Microsoft Access Lock File
File extension LAN	ERDAS LAN File
File extension LANG	Skype language settings file
File extension LAS	LIDAR Data Exchange File
File extension LASSO	Lasso Database-Driven Web Page
File extension LASTLOGIN	Minecraft User Credential File
File extension LATEX	LaTeX Document
File extension LAY	DVD Studio Pro Layout File
File extension LAYOUT	Apple MainStage layout file
File extension LBC	Cloaked Affiliate Link Builder Saved Link
File extension LBI	Dreamweaver Library Item
File extension LBL	Database label file format
File extension LBM	Deluxe Paint Bitmap Image
File extension LBR	LU Library Archive
File extension LBS	Omnis Library
File extension LBT	FoxPro Label Memo
File extension LBU	Cloaked Affiliate Link Builder Settings File
File extension LBX	FoxPro Label File
File extension LCB	Concept2 LogCard utility LogCard backup image
File extension LCC	Capture One Lens Cast Correction File
File extension LCD	CDSpace Emulated Disk Image
File extension LCF	ArchiCAD Library Container File
File extension LCK	Program Lock File
File extension LCM	Lipikar Custom Map File
File extension LCN	Corel WordPerfect dictionary file
File extension LD2	Lingoes Dictionary File
File extension LDB	Microsoft Access Lock File
File extension LDF	SQL Server Transaction Log File
File extension LDIF	LDAP Data Interchange Format File
File extension LDM	VolumeViz Multi-Resolution Volume File
File extension LDR	LDraw Model File
File extension LDS	Binutils LD Linker Script
File extension LDT	ZENAX source EULUMDAT file
File extension LDW	Virtual Villagers Saved Game File
File extension LEF	LEN Exchange Format File
File extension LEGAL	DaveTech Legal Document
File extension LEMON	LemonShare.net Download
File extension LESS	LESS Style Sheet
File extension LETTER	Undeliverable Mail File
File extension LEX	Adobe Linguistic Library Data File
File extension LFO	Alchemy Low Frequency Oscillator Presets File
File extension LFP	IPRO LFP File
File extension LFS	Samsung Phone params.lfs File
File extension LGC	SimpleK Database File
File extension LGF	PMSCAN Log File
File extension LGH	HMI Historical Log File
File extension LGI	Multimedia Logic File
File extension LGL	LeechGet Download List
File extension LGO	Logo Instructions File
File extension LGP	Final Fantasy Media Archive
File extension LHA	LHARC Compressed Archive
File extension LHR	Quicken Financial Life for Mac File
File extension LHS	Literate Haskell Script
File extension LI3D	Live Interior 3D Document
File extension LIB	Microsoft Linker input library file
File extension LIBRARY-MS	Windows Library Description File
File extension LIC	Software License File
File extension LICENSEKEY	iPartition License Key File
File extension LICENSES	Visual Studio Licensed Classes File
File extension LICX	Visual Studio License File
File extension LID	Quicken 2002 Deluxe file
File extension LIF	Leica Image File
File extension LIFE	LIGHT File
File extension LILY	PCSX2 LilyPad Configuration File
File extension LIN	AutoCAD Linetype File
File extension LINK	iPod Link File
File extension LINX	Bridge Base file
File extension LIP	SLIP file format
File extension LIS	SQR Output File
File extension LISP	Lisp Source Code File
File extension LIST	JAR Index File
File extension LIT	eBook File
File extension LIVEREG	Symantec Antivirus Session File
File extension LIVEUPDATE	Symantec LiveUpdate File
File extension LIX	Logos Library System File
File extension LIZD	Live Interior 3D Compressed Document
File extension LJP	Lossless JPEG Image
File extension LL	List & Label Preview File
File extension LLB	LabVIEW Library File
File extension LLM	Linden Lab Mesh File
File extension LLX	LabVIEW VI Library Backup File
File extension LMK	Sothink Logo Maker Image
File extension LMS	Light-O-Rama musical sequence file
File extension LMU	RPG Maker Map File
File extension LMX	Landmark Exchange File
File extension LND	3D Landscape File
File extension LNG	Language Application Support File
File extension LNK	Windows File Shortcut
File extension LNST	Adobe InDesign Line Presets File
File extension LNT	PC-lint/FlexeLint Configuration File
File extension LNX	Atari Lynx ROM
File extension LO	Interleaf Compiled Lisp File
File extension LOADERS	GTK+ Loaders File
File extension LOC	GPS Location File
File extension LOCALSTORAGE	WebKit Local Storage Data File
File extension LOCK	Lock File
File extension LOCKFILE	Mac OS X PLIST Lock File
File extension LOD	Homeworld level of detail file
File extension LOF	Audacity File List
File extension LOG	Log File
File extension LOG1	Windows Registry Hive Log File
File extension LOG2	Windows Registry Hive Log 2 File
File extension LOGIC	Logic Pro Project File
File extension LOGONVISTA	LogonStudio Windows Vista Logon Screen
File extension LOGONXP	LogonStudio Windows XP Logon Screen
File extension LOL	LOLCODE Source Code FIle
File extension LOOK	SpeedGrade Look File
File extension LOOV	Smadav Virus Definitions File
File extension LOP	MasterCook Layout File
File extension LOVE	LÖVE Game File
File extension LP	Lightscape Preparation File
File extension LP2	iLEAP Word Processing Document
File extension LP7	LP7 Digitally Signed File
File extension LPB	LaserTank Replay File
File extension LPD	Lookout Protocol Driver File
File extension LPDB	Librarian Pro Database File
File extension LPDF	Localized PDF File
File extension LPK	ArcGIS Layer Package
File extension LPMD	LPMD Molecular Data File
File extension LPP	LabelPrint Project File
File extension LPROJ	Localized Project Folder
File extension LPS	Bryce Leaf Shape File
File extension LQR	SQ Compressed LBR Archive
File extension LQT	Liquid Audio File
File extension LRC	Lyrics File
File extension LRCAT	Adobe Photoshop Lightroom Catalog File
File extension LRDATA	Adobe Photoshop Lightroom Data File
File extension LRDB	Photoshop Lightroom Database
File extension LREC	Inter-Tel Web Conference Recording
File extension LRF	Sony Portable Reader File
File extension LRPLUGIN	Photoshop Lightroom Plug-in
File extension LRS	Librie Reader Source File
File extension LRSMCOL	Photoshop Lightroom Smart Collection Settings File
File extension LRTEMPLATE	Adobe Photoshop Lightroom Template
File extension LRV	Low Resolution Video File
File extension LRWEBENGINE	Photoshop Lightroom Web Gallery File
File extension LRX	Sony Portable Reader File
File extension LS	LightWave LScript File
File extension LS3	Band-in-a-Box Third-Party Styles File
File extension LSD	FIFA World Cup game data environment file
File extension LSF	Logos Library System File
File extension LSL	Corel Paradox file
File extension LSN	Microsoft Works file
File extension LSO	Logic Audio Project
File extension LSP	Lisp Program Source Code File
File extension LSPROJ	Visual Studio LightSwitch Project
File extension LSR	LANsurveyor Report
File extension LST	Data List
File extension LSU	LANsurveyor Map
File extension LSW	RPG Maker Saved Game File
File extension LSX	Streaming Media Shortcut
File extension LT2	Poser Light Set File
File extension LTF	Laser App Temp Form File
File extension LTG	LaserTank Graphics File
File extension LTR	Letter File
File extension LTX	LaTeX Document
File extension LTZ	Compressed Poser Light Set File
File extension LUA	Lua Source File
File extension LUE	Norton LiveUpdate Log File
File extension LUF	Lipikar Uniform Format File
File extension LUT	XnView Lut file
File extension LUTX	RadioRA 2 Essentials Project Database
File extension LUXB	Lux Map File
File extension LVA	Logitech Video Effects Avatar File
File extension LVF	Logitech Video Effects File
File extension LVIVT	Lvivtotoro Encrypted Game File
File extension LVL	Game Level File
File extension LVM	LabVIEW Measurement File
File extension LVP	Avaya Voice Player Audio File
File extension LVW	Livewire Document
File extension LW4	Lightwright File
File extension LWFN	Adobe Type 1 Mac Font File
File extension LWO	LightWave 3D Object File
File extension LWP	Lotus Word Pro Document
File extension LWS	LightWave 3D Scene File
File extension LWTP	LimeWire Theme Pack
File extension LWV	Linguistically Enhanced Sound File
File extension LXA	Microsoft Speech Lexicon File
File extension LXCP	LCARS x32 Color Profile
File extension LXF	LEGO Digital Designer Model File
File extension LXFML	LEGO Digital Designer XML File
File extension LXO	Luxology modo 3D Image
File extension LXSOPT	Liquid XML Studio Project Options File
File extension LXSPROJ	Liquid XML Studio Project File
File extension LY	LilyPond File
File extension LYC	bestIMAGE Compressed Design File
File extension LYR	ArcView Layer File
File extension LYT	Adminsoft Document Layout File
File extension LYX	LyX Document
File extension LZ	Lzip Compressed File
File extension LZH	LZH Compressed File
File extension LZM	Slax Module
File extension LZMA	LZMA Compressed File
File extension LZO	LZO Compressed File
File extension LZX	Amiga LZX Compressed File