But even with determinism, it's not always right. It's not too rare to find a text file with a byte order mark indicating UTF16 (0xFE 0xFF) but then actually co

But even with determinism, it's not always right. It's not too rare to find a text file with a byte order mark indicating UTF16 (0xFE 0xFF) but then actually containing utf-8. But what "format" does it have then? Is it UTF-8 or UTF-16? Same with e.g. a jar file missing a manifest. That's just a zip, even though I'm sure some runtime might eat it. But the question is when you have the issue of having to guess the format of a file? Is it when reverse engineering? Last time I did something like this was in the 90's when trying to pick apart some texture from a directory of files called asset0001.k and it turns out it was a bitmap or whatever. Fun times.