| ini | Initialization File |
| ini | Smokeview Configuration Data |
| ini-dist | PHP Distribution Default Settings Data |
| ins | Microsoft Windows Internet Settings File |
| inss | Mac OS X Setup Assistant ISP Info Data |
| interp | Gimp Interpreter Definition File |
| inz | Datalogic Lighter Configuration |
| ipcc | iPhone Carrier Bundle |
| ipk | iPack Configuration File |
| ipk | NRG iPack Configuration |
| ipu | Vocaltec Internet Phone User Data |
| ir | Crestron BPC-HPLIR IR File |
| irbrc | Interactive Ruby Console Configuration Data |
| iros | Adobe Photoshop Save For Web Tool Settings |
| isp | Internet Sign-up Settings |
| iuux | Powerflex IUUX Configuration Data |
| ivc | InteliSea Vessel Configuration |
| iveset | Investigation Video Editor Settings Data |
| ixi | ixiQuarks Preferences Data |
| ixw | ERDAS Imagine Workspace Layout |
| jaas | JAAS Configuration File |
| jai | Jaikoz Audio Tag Editor Settings |
| jap | jAlbum Settings |
| jarx | Jarx Configuration |
| jcf | JAWS Settings Data |
| jcp | Jesusonic Preset File |
| jdw | BlackBerry JDE Workspace |
| jeq | JetAudio Equalizer Settings |
| jgcscs | EditPad Custom Syntax Coloring Scheme |
| jgf | JAWS Configuration |
