Extensions: 'I'
| Format | Description | Author | File / Link |
|---|---|---|---|
| ICC | ICC File Format for Color Profiles (Acrobat) | LINK | |
| Kodak printer image format (C code) | Download | ||
| ICL | ICon Library format info | Download | |
| ICMP | Internet Control Message Protocol | LINK | |
| ICO | Icon resources in ICO, DLL and EXE files (Also CUR files) | John Hornick | Download |
| ICS | iCalendar file format | The Internet Society | LINK |
| ID3 | ID3 resource | LINK | |
| IDF | Instrument Definition File Format | Microsoft | Download |
| IDX | Outlook Express Index and message file formats | Barry Eggers | Download |
| Outlook Express (IE4) Index File Format | Jeff Evans, Arne Schloh | Download | |
| Outlook Express (IE4) Index File Format and Mailbox files (with C code) | Tom Gallagher | Download | |
| IFC | Building Industry Foundation Classes | LINK | |
| IFF | EA IFF Standard for Interchange File Format | Jerry Morrison / Electronic Arts | Download |
| IGES | Draft for IGES 5.x | LINK | |
| ILBM | Interleaved Bitmap | Jerry Morrison | Download |
| C source to convert LBM pictures into PPM pictures | Download | ||
| ILI | Interlis ILI, ITF and XTF Formats | LINK | |
| IM | Applixware Bitmap file format (.im) | VistaSource, Inc. | Download |
| IMAGINE | Designing Texture Modules for Imagine | Download | |
| Imagine Staging File Format | Gabriele Scibilia | Download | |
| Imagine 3.0 Object & Texture File Formats | Impulse Inc. | Download | |
| IMELODY | Specifications for EMS Imelody | Download | |
| IMG | Erdas Imagine IMG ans MIS formats | Download | |
| IMP | RCA REB1200 ebook format | Jeffrey Kraus-yao | LINK |
| INCREMENTA | Incremental Compression Algorithm | Jeff Connelly | Download |
| INDIGO | Indigo Graphics Format | Eddi Litvak | Download |
| INF | OS/2 2.0 Information Presentation Facility (IPF) Data Format | Carl Hauser/Marcus Groeber | Download |
| Template for use when creating INF files | Robert Rapp | Download | |
| INFINI-D | Infini-D 3.0 Format | Specular R&D | Download |
| INGR | Intergraph Raster Format | LINK | |
| INTEL MMX | Intel MMX Instructions also extra Cyrix extensions | Download | |
| INTEL x86 | Intel Instruction Sets (Word) | Download | |
| Intel 8086/80186/80286/80386/80486 Instruction Sets | Download | ||
| INVENTOR | Open Inventor Site | SGI | LINK |
| How to Write an Open Inventor File Translator | Silicon Graphics, Inc. | Download | |
| IP | Internet Protocol | LINK | |
| ISFF | Intergraph and Microstation Standard File Format (also .DGN) | Download | |
| ISHI | ISHI Format for Go Data Files | David Fotland | LINK |
| ISS | FunCom ISS Audio File Format (.ISS, .XARC) | Valery V. Anisimovsky | Download |
| IT | Impulse Tracker Site | LINK |
How to help
If you have any better information or if you find problems with these files or links please .