Browse alphabetically: L

File extension File description Developer/Producer
.l
Lex Source File Mike Lesk
.l01
EnCase Logical Evidence File Guidance Software
.l3d
Black & White Graphics File Lionhead Studios
.l4d
Cinema 4D Layout File MAXON Computer
.l6t
Line 6 Tone File Line 6
.la
Lossless Audio File La
.lab
WordPerfect Label Definition File Corel
.laby
Laby Level File Laby
.laccdb
Microsoft Access Lock File Microsoft
.lan
ERDAS LAN File ERDAS
.lang
Minecraft Language File Mojang
.las
LIDAR Data Exchange File ASPRS
.lasso
Lasso Database-Driven Web Page LassoSoft
.lastlogin
Minecraft User Credential File N/A
.latex
LaTeX Document N/A
.lay
DVD Studio Pro Layout File Apple
.layout
Code::Blocks Workspace Layout File Code Blocks
.lbc
Cloaked Affiliate Link Builder Saved Link Curry K. Software
.lbi
Dreamweaver Library Item Adobe Systems
.lbl
NiceLabel Template File Euro Plus
.lbm
Deluxe Paint Bitmap Image Electronic Arts
.lbr
LU Library Archive N/A
.lbs
Omnis Library Raining Data
.lbt
FoxPro Label Memo N/A
.lbu
Cloaked Affiliate Link Builder Settings File Curry K. Software
.lbx
FoxPro Label File Microsoft
.lcb
Living Cookbook Backup File Radium Technologies
.lcc
Capture One Lens Cast Correction File Phase One
.lcd
CDSpace Emulated Disk Image Space International
.lcf
ArchiCAD Library Container File Graphisoft
.lck
Program Lock File N/A
.lcm
Lipikar Custom Map File Lipikar
.lcn
License File Trymedia Systems, Inc.
.ld2
Lingoes Dictionary File Lingoes Project
.ldb
Microsoft Access Lock File Microsoft
.ldf
SQL Server Transaction Log File Microsoft
.ldif
LDAP Data Interchange Format File N/A
.ldm
VolumeViz Multi-Resolution Volume File Visualization Sciences Group
.ldr
LDraw Model File LDraw.org
.lds
Binutils LD Linker Script The GNU Project
.ldt
Eulumdat Formatted Luminaire Data File DIAL
.ldw
Virtual Villagers Saved Game File LDW Software
.lef
LEN Exchange Format File N/A
.legal
DaveTech Legal Document DaveTech
.lemon
LemonShare.net Download LemonShare.net
.less
LESS Style Sheet Alexis Sellier
.letter
Undeliverable Mail File N/A
.lex
Adobe Linguistic Library Data File Adobe Systems
.lfo
Alchemy Low Frequency Oscillator Presets File Camel Audio
.lfp
IPRO LFP File IPRO Tech
.lfs
Samsung Phone params.lfs File Samsung
.lgc
SimpleK Database File Prosystech
.lgf
PMSCAN Log File Palmer Performance
.lgh
HMI Historical Log File N/A
.lgi
Multimedia Logic File Softronics
.lgl
LeechGet Download List LeechGet
.lgo
Logo Instructions File Softronics
.lgp
Final Fantasy Media Archive Square Enix
.lha
LHARC Compressed Archive N/A
.lhr
Quicken Financial Life for Mac File Intuit
.lhs
Literate Haskell Script N/A
.li3d
Live Interior 3D Document BeLight Software
.lib
Generic Data Library N/A
.library-ms
Windows Library Description File Microsoft
.lic
Software License File N/A
.licensekey
iPartition License Key File Coriolis Systems
.licenses
Visual Studio Licensed Classes File Microsoft
.licx
Visual Studio License File Microsoft
.lid
Kodak EasyShare Album File Kodak
.lif
Leica Image File Leica Microsystems
.life
LIGHT File Light of Creativity
.lily
PCSX2 LilyPad Configuration File The PCSX2 Team
.lin
AutoCAD Linetype File Autodesk
.link
iPod Link File N/A
.linx
iPod Links Folder N/A
.lip
Bethesda Softworks Lip Sync File Bethesda Softworks
.lis
SQR Output File N/A
.lisp
Lisp Source Code File N/A
.list
JAR Index File Oracle
.lit
eBook File Microsoft
.livereg
Symantec Antivirus Session File Symantec
.liveupdate
Symantec LiveUpdate File Symantec
.lix
Logos Library System File Logos Bible Software
.lizd
Live Interior 3D Compressed Document BeLight Software
.ljp
Lossless JPEG Image Joint Photographic Experts Group
.ll
List & Label Preview File Combit
.llb
LabVIEW Library File National Instruments
.llm
Linden Lab Mesh File Linden Research
.llx
LabVIEW VI Library Backup File National Instruments
.lmk
Sothink Logo Maker Image SourceTec Software
.lms
LenMus Score File LenMus
.lmu
RPG Maker Map File Enterbrain
.lmx
Landmark Exchange File Nokia
.lnd
3D Landscape File Upperspace
.lng
Language Application Support File N/A
.lnk
Windows File Shortcut Microsoft
.lnst
Adobe InDesign Line Presets File Adobe Systems
.lnt
PC-lint/FlexeLint Configuration File Gimpel Software
.lnx
Atari Lynx ROM N/A
.lo
Interleaf Compiled Lisp File BroadVision
.loaders
GTK+ Loaders File N/A
.loc
GPS Location File N/A
.localstorage
WebKit Local Storage Data File The WebKit Open Source Project
.lock
Lock File N/A
.lockfile
Mac OS X PLIST Lock File Apple
.lod
Heroes of Might and Magic 3 Graphics File Ubisoft
.lof
Audacity File List Audacity
.log
Log File N/A
.log1
Windows Registry Hive Log File Microsoft
.log2
Windows Registry Hive Log 2 File Microsoft
.logic
Logic Pro Project File Apple
.logonvista
LogonStudio Windows Vista Logon Screen Stardock
.logonxp
LogonStudio Windows XP Logon Screen Stardock
.lol
LOLCODE Source Code FIle Adam Lindsay
.look
SpeedGrade Look File Adobe Systems
.loov
Smadav Virus Definitions File Smadsoft
.lop
MasterCook Layout File ValuSoft
.love
LÖVE Game File LÖVE
.lp
Lightscape Preparation File Autodesk
.lp2
iLEAP Word Processing Document C-DAC
.lp7
LP7 Digitally Signed File Lex Persona
.lpb
LaserTank Replay File JEK Software
.lpd
Lookout Protocol Driver File National Instruments
.lpdb
Librarian Pro Database File Koingo Software
.lpdf
Localized PDF File Apple
.lpk
ArcGIS Layer Package ESRI
.lpmd
LPMD Molecular Data File LPMD
.lpp
LabelPrint Project File CyberLink
.lproj
Localized Project Folder N/A
.lps
Bryce Leaf Shape File DAZ Productions
.lqr
SQ Compressed LBR Archive N/A
.lqt
Liquid Audio File Liquid Digital Media
.lrc
Lyrics File N/A
.lrcat
Adobe Photoshop Lightroom Catalog File Adobe Systems
.lrdata
Adobe Photoshop Lightroom Data File Adobe Systems
.lrdb
Photoshop Lightroom Database Adobe Systems
.lrec
Inter-Tel Web Conference Recording Inter-Tel
.lrf
Sony Portable Reader File Sony
.lrplugin
Photoshop Lightroom Plug-in Adobe Systems
.lrs
Librie Reader Source File N/A
.lrsmcol
Photoshop Lightroom Smart Collection Settings File Adobe Systems
.lrtemplate
Adobe Photoshop Lightroom Template Adobe Systems
.lrv
Low Resolution Video File GoPro
.lrwebengine
Photoshop Lightroom Web Gallery File Adobe Systems
.lrx
Sony Portable Reader File Sony
.ls
LightWave LScript File NewTek
.ls3
Band-in-a-Box Third-Party Styles File PG Music
.lsd
RPG Maker Game Save File Enterbrain
.lsf
Logos Library System File Logos Bible Software
.lsl
LightScribe Label Hewlett-Packard
.lsn
Finale Lesson File MakeMusic
.lso
Logic Audio Project Apple
.lsp
Lisp Program Source Code File N/A
.lsproj
Visual Studio LightSwitch Project Microsoft
.lsr
LANsurveyor Report N/A
.lst
Data List N/A
.lsu
LANsurveyor Map N/A
.lsw
RPG Maker Saved Game File Enterbrain
.lsx
Streaming Media Shortcut Microsoft
.lt2
Poser Light Set File Smith Micro
.ltf
Laser App Temp Form File Laser App Software
.ltg
LaserTank Graphics File JEK Software
.ltr
Letter File N/A
.ltx
LaTeX Document N/A
.ltz
Compressed Poser Light Set File Smith Micro
.lua
Lua Source File N/A
.lue
Norton LiveUpdate Log File Symantec
.luf
Lipikar Uniform Format File Lipikar
.lut
RadioRA Essentials Project Database Lutron Electronics
.lutx
RadioRA 2 Essentials Project Database Lutron Electronics
.luxb
Lux Map File Sillysoft
.lva
Logitech Video Effects Avatar File Logitech
.lvf
Logitech Video Effects File Logitech
.lvivt
Lvivtotoro Encrypted Game File Lvivtotoro
.lvl
Game Level File N/A
.lvm
LabVIEW Measurement File National Instruments
.lvp
Avaya Voice Player Audio File Avaya
.lvw
Livewire Document New Wave Concepts
.lw4
Lightwright File John McKernon Software
.lwfn
Adobe Type 1 Mac Font File Adobe Systems
.lwo
LightWave 3D Object File NewTek
.lwp
Lotus Word Pro Document IBM
.lws
LightWave 3D Scene File NewTek
.lwtp
LimeWire Theme Pack LimeWire
.lwv
Linguistically Enhanced Sound File Microsoft
.lxa
Microsoft Speech Lexicon File Microsoft
.lxcp
LCARS x32 Color Profile LCARS x32
.lxf
LEGO Digital Designer Model File LEGO
.lxfml
LEGO Digital Designer XML File LEGO
.lxo
Luxology modo 3D Image Luxology
.lxsopt
Liquid XML Studio Project Options File Liquid Technologies
.lxsproj
Liquid XML Studio Project File Liquid Technologies
.ly
LilyPond File GNU
.lyc
bestIMAGE Compressed Design File Stork Prints
.lyr
ArcView Layer File ESRI
.lyt
Adminsoft Document Layout File Adminsoft
.lyx
LyX Document LyX
.lz
Lzip Compressed File Lzip
.lzh
LZH Compressed File N/A
.lzm
Slax Module Slax
.lzma
LZMA Compressed File N/A
.lzo
LZO Compressed File N/A
.lzx
Amiga LZX Compressed File N/A