Now there's an obsolete format. From Apple's abortive foray into the very early days of digital photography. I have a stack of them from a trip to Australia many years ago. The filetype is .pict but [typically Apple] a proprietory version of .pict that nothing else can read and [also typically Apple] support for the format has been dropped from Quicktime since the pre-OSX days.
Not much hope for file formats surviving into the future when even their own progenitors abandon them, after a few years!