| local | Paket Local Data |
| localized | Mac OS X System Localization Data |
| localstorage | WebKit Local Storage Data |
| location | Microsoft Windows 10 Registry Data |
| lock3 | BlackBerry Encrypted 3GP |
| locs | EEGLAB Location Data |
| locs | Illumina BeadArray Location Data |
| locx | ARNColoc Custom Loc Data |
| lof | Audacity File List |
| lof | LaTeX Auxiliary Data |
| log | Avira AntiVirus Report Log |
| log | Extensible Storage Engine Transaction Log |
| log | General Log |
| log5 | Automise 5 Log |
| logbook3 | SportTracks 3 Logbook |
| logg | eXtendable Wad Editor LOGG Data |
| logicdata | Saleae Logic Analyzer Data |
| logikcs | Apple Logic Key Command Data |
| logonvista | LogonStudio Windows Vista Logon Screen |
| logonxp | LogonStudio Windows XP Logon Screen |
| loh | IGV Loss of Heterozygosity Data |
| lok | OmniPage 9 LOK Data |
| lok | PTC Creo Directory Lock Data |
| lol | CYANA Lower Distance Limit File |
| lon | Aquaterra Longitudinal Profile Data |
| loo | Sterlingware Fractal Parameter File |
| look | Adobe SpeedGrade Look |
| looklibrary | Corel Painter Looks Library |
| loop | Apple Soundtrack Pro Loop Data |
| loov | SmadAV Virus Definitions |
