.IDX
Index File
Data
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16 extensions
Letter: I
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.IFC
Industry Foundation Classes
Data
.IGC
International Gliding Commission Flight Data File
Data
.IGES
Initial Graphics Exchange Specification
Data
.IGES (.IGS, .IGES)
Initial Graphics Exchange Specification
Data
.IGS
Initial Graphics Exchange Specification
Data
.IMG
Disk Image File
Data
.IMOVIEPROJ
iMovie Project File
Video
.IMY
iMelody Ringtone File
Audio
.INC
Include File
Programming
.INF
Setup Information File
Data
.IPA
iOS App Package
Archive
.IPSW
iPhone Software Package
Archive
.IPYNB
Jupyter Notebook
Programming
.ISO
International Organization for Standardization (ISO) Disk Image
Archive
.ITMT
iTones Music Theme File
Data
.IDX
.IFC
.IGC
.IGES
.IGES (.IGS, .IGES)
.IGS
.IMG
.IMOVIEPROJ
.IMY
.INC
.INF
.IPA
.IPSW
.IPYNB
.ISO
.ITMT
Index File
Data
Industry Foundation Classes
Data
International Gliding Commission Flight Data File
Data
Initial Graphics Exchange Specification
Data
Initial Graphics Exchange Specification
Data
Initial Graphics Exchange Specification
Data
Disk Image File
Data
iMovie Project File
Video
iMelody Ringtone File
Audio
Include File
Programming
Setup Information File
Data
iOS App Package
Archive
iPhone Software Package
Archive
Jupyter Notebook
Programming
International Organization for Standardization (ISO) Disk Image
Archive
iTones Music Theme File
Data
Frequently Asked Questions
Everything you need to know about file extensions
You can search by entering a file extension directly in the search bar or browse the directory by category or alphabetical index.
Each listing provides a definition of the file extension, common use cases, compatible software, supported platforms, and related or alternative formats.
The database is updated regularly to reflect new file extensions, changes in software compatibility, and evolving file format standards.