[steve1977]

Well there are formats like AIFF and WAVE, see here:

https://paulbourke.net/dataformats/audio/

These are more or less direct descendants of IFF so to speak (WAVE being based on RIFF, which is essentially little-endian IFF), the page also mentions as much:

"Audio IFF conforms to the "EA IFF 85" Standard for Interchange Format Files developed by Electronic Arts."

[surfingdino]

IFF was a popular image format at the time.

[steve1977]

Would that have been ILBM specifically? https://en.wikipedia.org/wiki/ILBM

I wasn't using Amigas at that time, I had an Atari... I vaguely remember Targa files (.tga)

[surfingdino]

DeluxePaint used IFF. Here's a good writeup https://sandervanderburg.blogspot.com/2012/06/iff-file-forma...