Interchange File Format (IFF), is a generic container file format originally introduced by the Electronic Arts company in 1985 (in cooperation with Commodore/Amiga) in order to ease transfer of data between software produced by different companies .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. The IFF format has long been abandoned. It’s not that the Web site for it is down; it predates Web sites and never had one. There is no central registry to speak of anymore. However, the IFF format is still in use. The AIFF audio file format is simply one particular instance of an IFF file. 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 change to little endian to match the x86 processor architecture. Apple Computer’s AIFF is a big endian audio file format developed from IFF. The TIFF image file format is unrelated.

Interchange File Format (IFF), is a generic container file format originally introduced by the Electronic Arts company in 1985 (in cooperation with Commodore/Amiga) in order to ease transfer of data between software produced by different companies .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. The IFF format has long been abandoned. It’s not that the Web site for it is down; it predates Web sites and never had one. There is no central registry to speak of anymore. However, the IFF format is still in use. The AIFF audio file format is simply one particular instance of an IFF file. 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 change to little endian to match the x86 processor architecture. Apple Computer’s AIFF is a big endian audio file format developed from IFF. The TIFF image file format is unrelated.