IX-WordPerfect-Office-template-file
IX-WordPerfect-Office-Template-File-Corel-Corporation
IXX-C-Include-File
IZD-Intrexx-Application-Export-Format
IZS-1st-Page-2000-JavaScript-example-file
IZS-1st-Page-2000-JavaScript-Example-File-Evrsoft
IZT-Binary-token-file-IZT
IZX-Intermezzon-Designer-E-Learning-Published-File-Intermezzon-Learning-Systems-AB
IZZ-Isadora-Media-Control-Project
J1-EDIT-Compiler-JEDEC-Boundary-file
J2A-Jazz-Jackrabbit-2-Animation-Library-Epic-MegaGames-Inc
J2B-Jazz-Jackrabbit-2-Music-File-Epic-MegaGames-Inc
J2C-Joint-Photographic-Experts-Group-2000-Image-File
J2C-JPEG-2000-image
J2D-Jazz-Jackrabbit-Data-File-Epic-MegaGames-Inc
J2E-Jazz-Jackrabbit-2-Episode-File-Epic-MegaGames-Inc
J2H-Jazz-Jackrabbit-2-High-Scores-Epic-MegaGames-Inc
J2I-Jazz-2-Internet-Link-File
J2I-Jazz-Jackrabbit-2-Internet-Server-Link-Epic-MegaGames-Inc
J2K-JPEG-2000-Image
J2K-JPEG-2000-JP2-File
J2L-Jaxx-Creation-Station-Level-File-Epic-MegaGames-Inc
J2L-Jazz-Jackrabbit-2-Level-File
J2M-Jazz-Jackrabbit-2-Recorded-Macro-Epic-MegaGames-Inc
J2S-Jazz-Jackrabbit-2-Language-Data-Epic-MegaGames-Inc
J2T-Jazz-Jackrabbit-2-Tile-Set-Epic-MegaGames-Inc
J2V-Jazz-Jackrabbit-2-Cinematic-File-Epic-MegaGames-Inc
J3D-Atari-Jaguar-3D-object-data-file
J62-Ricoh-camera-format-file
J6I-Ricoh-Digital-Camera-File-Ricoh-Co-Ltd
J6I-Ricoh-Digital-Camera-image-format
JACKSUM-Jacksum-Fingerprint-Dipl-Inf-FH-Johann-N-L-fflmann
JAD-Java-Application-Descriptor-file
JAG-Atari-Jaguar-JPEG-compressed-image
JA-IBM-tools-updater-file
JAK-Jack-compressed-archive-file
JAM-E-mail
JAM-E-mail-file
JAM-FTN-Software-Jam-Messagebase
JAM-Image-Microprose
JAM-Jam-messagebase-FTN-software
JAM-JAM-Musical-Score
JAM-Jam-music-score-Jam
JAM-JamTracker-module-Music
JAM-JamTracker-Music-Module
JAM-Joaquim-Andrew-Mats-Message-Base-Proposal
JAM-Leisure-Suite-Larry-Magna-Cum-Laude-archive-file
JAM-Misc
JAMMIX-Jammix-Enhacer-Music-Transform-File-Danilics-Tibor
JAM-Unknown-Apple-II-File
TechTarget file types