| hts | UBTECH Alpha 1 Pro Robot Action |
| htt | Windows Web View Template |
| hvpl | iTunes Visual Plug-in |
| hwi | BrailleNote Apex Upgrade Installation File |
| hwl | Corel Writing Tools File |
| hwp | Hollywood Plugin |
| iadplug | iAd Producer Plugin |
| iads | DCS World IADS Script |
| ic8 | Neo Geo BIOS Image |
| ica | Citrix ICA Connection Extension |
| ice | IceChat IRC Client Script |
| idlk | Adobe InDesign Lock File |
| idx | NoX Game Data |
| idx_dll | Microsoft Office IDX_DLL Data |
| ifb | Infotriever Plug-in |
| ifo | DVD Information File |
| ifos | Instant File Opener Script |
| iht | Intranet Connector Script |
| iic | Cypress FX2 I2C Firmware File |
| ijc | JavaCard Applet |
| ilfdr | Interleaf Folder |
| in | General Input File |
| in2 | InocuLAN Antivirus Renamed |
| in3 | Harvard Graphics 3.0 Input Device Driver |
| indesignplugin | Adobe InDesign Plug-in |
| index | General Index File |
| inf | Setup Information File |
| inlk | Adobe InDesign Lock FIle |
| innd | INN MOTD Document |
| inputplugin | Mac OS X Input Plugin |
| ioc | WinAMP IO Plugin |
| ipod | Rockbox iPod Firmware |
| ipsx | iPhone / iPod Firmware Upgrade |
| iqa | IQ App Studio SmartApp |
| iqx | Inquisit Script |
| irm | Oracle IRM Wrapper Data |
| irs | Adobe Photoshop Optimized Settings |
| isa | Adobe Photoshop ImageReady Actions File |
| isc | ISP Configuration File |
| itls | iTunes Live Stream URL |
| ius | InfoTM Tablet Firmware Update |
| ivi | Interchangeable Virtual Instruments File |
| ivif | Interchangeable Virtual Instruments File |
| jac | JaStaCry Encrypted File |
| jbz | Jawbone Jambox Software Updater |
| jc! | FlashGet Incomplete Download |
| jim | JIRA Importers Plugin |
| jjc | Canvas Compressed Audio Data |
| jlb | PAC Mate BX Keyboard Driver |
| jlc | Sawfish Compiled Lisp-based Script |
| jmc | JM-Crypt Encrypted Data |
| jmce | JM-Crypt Encrypted Data |
| jmck | JM-Crypt Encrypted Data |
| jmcp | JM-Crypt Encrypted Data |
| jmcr | JM-Crypt Encrypted Data |
| jmcx | JM-Crypt Encrypted Data |
| jnk | General Temporary File |
| jpi | Jenkins JPI Plugin |
| jsf | Macromedia Fireworks Batch Script |
| jzp | Agilent Oscilloscope System Update File |
| kac | Karwos Suite Licence |
| kak | Kakoune Editor Plugin |
| kbd | Keyboard Layout Script |
| kbt | K.Y.N.G Boot Data |
| kdelnk | KDE Desktop Link |
| kee | Harpoon 3 Registration Key File |
| key | General Key Data |
| khi | Microsoft Dynamics AX Kernel Help Index |
| kix | KiXtart Script |
| kmm | K-Meleon Macro Module |
| kode | KodeFile Encrypted Data |
| kss | KDE Desktop Screensaver |
| kst | Olivetti Olitext Plus Script |
| ktm | KTE Test Macro |
| ktp | Cakewalk Kinetic Project Template |
| ktu | KetuFile Encrypted Data |
| kuf | K.Y.N.G Software Update |
| kumac | Physics Analysis Workstation Macro |
| kuu | K.Y.N.G USB Software Update |
| kvs | KVIrc Script |
| kxa | kX Project Add-on |
| kxl | Kubotek KeyCreator KXL Macro Library |
| lam | Netscape Media Player Streaming Audio Metafile |
| lan | Novell NetWare LAN Driver |
| lbr | Lotus 1-2-3 Display Driver |
| lbxupd | Libronix DLS Update Script |
| lck | General Program Lock File |
| lcr | Lazarcrypter Encrypted File |
| ldap | IBM AIX LDAP Server Information Data |
| leechget | LeechGet Incomplete Download |
| legal | DaveTech Legal Document |
| leotmi | Privacy Lock Protected Data |
| letter | Sendmail Undeliverable Mail |
| lf | SketchUp License FIle |
| lhex | LiteOS Hex Data |
| lhx | Light-O-Rama Product Firmware |
| libzip | Camtasia Studio Zipped Library |
| licensekey | iPartition License Key |
| lid | Lextek Language Identification Module |
| lkd | Pioneer OEL Screensaver |
