Interchange File Format

Container file format introduced by Electronic Arts and Commodore / From Wikipedia, the free encyclopedia

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Interchange File Format (IFF), is a generic container file format originally introduced by Electronic Arts in 1985 (in cooperation with Commodore) in order to facilitate transfer of data between software produced by different companies.

Quick facts: Internet media type, Developed by, ...
Interchange File Format
Internet media typeapplication/x-iff
Developed byElectronic Arts, Commodore
Initial release1985; 38 years ago (1985)
Type of formatDigital container format

IFF files do not have any standard extension. On many systems that generate IFF files, file extensions are not important (the OS stores file format metadata separately from the file name). An .iff extension is commonly used for ILBM format files, which use the IFF container format.

Resource Interchange File Format is a format developed by Microsoft and IBM in 1991 that is based on IFF, except the byte order has been changed to little-endian to match the x86 processor architecture. Apple's AIFF is a big-endian audio file format developed from IFF. The TIFF image file format is unrelated.