There are times when I think the source code of the Unix "file" command should be a required part of languages’ standard libraries. I have never seen anything

There are times when I think the source code of the Unix "file" command should be a required part of languages’ standard libraries. I have never seen anything do a better job of describing contents accurately. It’s really silly to see applications have trouble understanding data. Even on macOS, where "file" is installed, the graphical interface sometimes fails to open/preview something that the command-line "file" describes perfectly (i.e. if it’s really text, just show me the text).