| hwr | Humminbird Waypoints and Routes Data |
| ibn | ITR Data |
| icv | WebALP Camera 3D Trajectory Data |
| iga | CARIS IGA Image |
| ige | ERDAS Imagine Data |
| ili | INTERLIS Model Data |
| img | OpenMap Raster Geo Data |
| imp | TwoNav LAND Calibrated Image Map |
| ipf | SOCET SET Image Point File |
| irv | XMap GIS Image Data |
| isx | Intrasis Object File |
| iwg | ArcView CAD Reader DWG Index |
| izic | WebALP IZIC Data |
| j2w | ArcGIS JPEG2000 World Data |
| jct | JCT Data |
| jfw | JPEG World File |
| jgw | ArcGIS JPEG World File |
| jgwx | ArcGIS JPEG World File |
| jnx | Garmin JNX Raster Map |
| jpgw | ArcGIS JPEG World File |
| jtc | ArcGIS Desktop JTX Connection Data |
| kea | KEA Image |
| ker | ENVI Filter Kernel |
| kfc | Cumulus Projected Map File |
| kfl | KFLog Map File |
| klt | KLT WinATLAS Photogrammetric Capture System Data |
| kmb | AiM SmartyCam GPS Manager Track Data |
| kmtf | Garmin Nuvi Map Data |
| krt | klickTel Routenplanner Route Data |
| kvi | K2Vi Data |
| lan | ERDAS LAN |
| lht | Vector Product Format Library Header Table |
| locb | ArcGIS Desktop Local Locator Data |
| locx | GPS Arrow Navigator Pro Location Data |
| lox | ArcGIS Address Locator Data |