| haf | HEAT Archive |
| hap | Hamarsoft HAP Compressed Archive |
| haptar | Haptek Compressed Archive |
| hbc | SQL HyperBac Compressed Archive |
| hbc2 | SQL HyperBac Compressed Archive |
| hbe | SQL HyperBac Encrypted Archive |
| hbi | Handy Backup Index File |
| hcb | HyperOS Compressed Backup |
| hckx | Windows HCK Studio Submission Package |
| hif | Autodesk AutoCAD Heidi Information File |
| hki | WinHKI Archive |
| hki1 | WinHKI HKI1 Archive |
| hki2 | WinHKI HKI2 Archive |
| hki3 | WinHKI HKI3 Archive |
| hlkx | Windows HLK Studio Package |
| hpa | Hyper Patch Archive |
| hpg | Hide Photos Encrypted Photo Container |
| hpk | HPack Compressed Archive |
| hpkg | Haiku OS Package |
| hqz | Internet Explorer for Mac HQZ Archive |
| htr | Haptek Compressed Archive |
| htz | Web ScrapBook Zipped Archive |
| hv3 | HoneyView 3 Archive |
| hyp | Hyper Compressed Archive |
| hzq | CrossWorks for ARM Package |
| iar | OpenSimulator Inventory Archive |
| ibf | Instant Backup Archive |
| icap | Adobe InCopy CS4 Package |
| ice | ICEOWS Archive |
| ics | InCenter Server Settings Backup |
| icspkg | Intellitools Classroom Suite Package |
| idap | Adobe InDesign CS4 Package |
| idpk | Adobe InDesign Package for GoLive |
| idrz | PTC Creo View Compressed IDR Data |
| iebarzip | ExplorerBar Icon Package |
| ifg | Samsung IFG Theme Package |
| igl | igLoader Plugin |
| ikm | Ideal Kitchen Monitor Backup Data |
| imazing | iMazing iPhone Backup Archive |
| imazingapp | iMazing App Backup Archive |
| imscc | Canvas Course Export Package |
| incp | Adobe InCopy CS3 Package |
| indp | Adobe InDesign CS3 Package |
| inr | SAP BR Tools Incremental Backup Archive |
| inspxez | Intel Inspector Exported Archive |
| io | CPIO Archive |
| ipd | BlackBerry Phone Backup |
| ipg | iPod Game Package |
| ipk | Itsy Package |
| Secured WebGine Internet Package |
| webOS Package |
| Zaurus Install Package |
| ipkg | Itsy Package |
| ipsw | iPhone / iPod Software Update |
| iqb | AmeriCalc Backup |
| iqmol | IQmol Archive |
| iqzip | Inquisit Script Package |
| irz | iROS Application Package |
| isdocx | ISDOC Archive |
| ispac | Microsoft SQL Server Deployment Packet |
| ispm | Intel Simics Package Manager Data |
| ita | IconTweaker Theme Archive |
| itmsp | iTunes Store Package |
| iwa | iWork Archive File |
| iwzip | Incomedia Website X5 Project Archive |
| ixn | Mentor Graphics Service Pack Archive |
| izc | MRI Commercial Zipped Cabinet Data |
| ize | IZArc Encrypted Archive |
| j01 | Akeeba Multi-part Backup Archive |
| Akeeba Secured Backup Archive |
| j02 | Akeeba Multi-part Backup Archive |
| Akeeba Secured Backup Archive |
| j03 | Akeeba Multi-part Backup Archive |
| Akeeba Secured Backup Archive |
| j04 | Akeeba Multi-part Backup Archive |
| Akeeba Secured Backup Archive |
| j05 | Akeeba Multi-part Backup Archive |
| Akeeba Secured Backup Archive |
| jar | Java Archive |
| jbackup | The Journal Backup Archive |
| jdb | Symantec Endpoint Protection Update |
| jgz | JNode Module Package |
| jisp | Tkabber Emoticon Set |
| jma | NSRT Compressed Game ROM |
| jpa | Akeeba Multi-part Backup Archive |
| JoomlaPack Backup Archive |
| jps | Akeeba Secured Backup Archive |
| jp_ | Compressed Microsoft JPEG Image |
| jrc | JRchive Data |
| jsonlz4 | Mozilla Firefox Compressed Bookmarks Backup |
| jva | Junos Firefly VM Package |
| jzip | JZip Archive |
| kar | Keep-It Archive |
| kb2 | Kleo Backup Archive |
| kde | Kaspersky KryptoStorage Container |
| kdz | LG Smartphone Firmware Update |
| keb | Kaspersky Anti-virus Virus Bases Data |
| kextraction | Keka Extraction Package |
| kgb | KGB Compressed Archive |
| kge | KGB Archiver Encrypted |
