- L
| # | ||
|---|---|---|
| 0 | .L - Lex Language Source Format | Mike Lesk |
| 1 | .L01 - ARC Digitized Raster Graphics Format | N/A |
| 2 | .L2L - IBM Voice Type Languages Addword | IBM |
| 3 | .L2P - BM Voice Type Languages Addword | IBM |
| 4 | .L2R - Lineage II Replay | NCsoft Corporation |
| 5 | .L32 - Swift Line 21 Caption | Softel Limited |
| 6 | .L3D - Black & White Graphics Format | Lionhead Studios |
| 7 | .L4D - Cinema 4D Layout Settings Format | MAXON Computer |
| 8 | .L5K - RSLogix 5000 | Rockwell Automation, Inc. |
| 9 | .L6T - Line 6 GearBox Tone Format | Line 6 |
| 10 | .LA - La Lossless Compressed Audio Format | La |
| 11 | .LA0 - LucasArts Game Data | LucasArts Entertainment Company, LLC |
| 12 | .LA1 - LucasArts Game Data | LucasArts Entertainment Company, LLC |
| 13 | .LA2 - LucasArts Game Data | LucasArts Entertainment Company, LLC |
| 14 | .LAA - LucasArts AdLib Audio | N/A |
| 15 | .LAB - Corel WordPerfect Label Definition Format | Corel |
| 16 |