| iad | Symantec Patch Management Solution Data |
| iadpage | iAd Producer Page Template |
| iak | Mail.dat Information Access Key |
| ias | Intermodulation Analysis System Data |
| iati | International Aid Transparency Initiative Data |
| iaw | ImageAMMO Wrapper |
| ibak | Password Safe Intermediate Backup Archive |
| ibd | MySQL InnoDB Tablespace |
| ibd | Symantec Patch Management Solution v7 Data |
| ibe | IBECrypto Encrypted File |
| ibk | Treepad Database Index Backup |
| ibl | sIBL System Data |
| ibn | WinIQSIM Data |
| ibo | IB Objects Data |
| ibs | IBIS Data |
| ibt | IGOR Pro Binary Misc File |
| ibv | IGOR Pro Binary Variable File |
| ibw | IGOR Pro Binary Wave File |
| ibx | Interscope BlackBox File |
| ic | Sony Ericsson Icon Pack |
| ic0 | HSPICE Initial Conditions Data |
| ica | BrainVoyager QX Independent Component Analysis Data |
| icalevent | iCal Event |
| icalevent | iCal Event Data |
| icaltodo | iCal To Do |
| icbu | iCal Backup |
| icc | ICC Profile |
| icc | IconUtils Icon Collection |
| icg | Image Comparer Database |
| ichat | iChat Saved Log |
