| .sln |
Microsoft Visual Studio Solution File |
| .key |
Software License Key File, Apple's Keynote software file, keyboard definition file |
| .kad |
Kore user data |
| .sor |
Shared Object Remote |
| .evtx |
Windows Event Log File |
| .rsrc |
Macintosh Operating System Resource File |
| .xlam |
Excel Add-In file |
| .hlt |
Watcher Database trades list |
| .bdm |
AVCHD Information File |
| .dta |
Chain Engineering Database |
| .nts |
Lotus Notes Traveler Server Config File |
| .tmod |
Terraria Mod File |
| .pat |
Pattern file |
| .bytes |
Binary Text Asset Data File |
| .evp |
Talisman Online Game Data File, Electronic Voice Phenomenon, Earthview configuration file |
| .nsz |
Nintendo Switch game data |
| .mhtml |
MIME HTML File |
| .bnp |
Sony Camcorder Video Data File |
| .rpyc |
Ren'Py Compiled Script |
| .flat |
Flat data |
| .jdr |
IROAD Dash Cam Video File |
| .etc |
EarthTime Configuration files, Electronic Theatre Controls data, Seismograph data, or even a generic text file |
| .stp |
STEP 3D CAD File |
| .npy |
Python NumPy Array File |