[wzdd]

The fact that different parts of the file use different endiannesses really added that special Apple tech flavour.

[nxobject]

The BOM file format is very, very old - I think for the first decade of its life it actually lived on big-endian platforms (m68k/SPARC/PA-RISC NeXTSTEP, and then over to Apple and big-endian PowerPC.)

EDIT - someone needs to crack open x86 OPENSTEP and do some grepping for 'RATC'...

[NSUserDefaults]

At this point if a file format could have rounded corners I’m sure it would too.

[1970-01-01]

"You're holding it wrong", but in binary.