In this particular case, I am Importing[] the files, just because I had downloaded them locally.
Typically, the files have a number of JSON keys describing things like version numbers, license requirements etc., and then there is a 'data' key (although the name is often different) with a large list of lists that contain the parts I am really interested in.
My question is whether there is a simple way of visualising the structure when you know nothing about the file. I was wondering if I could perhaps display the keys as a tree plot of some kind, or maybe there is a way to show the structured as an indented list. There are a number of web based tools that can do this sort of thing, and I was hoping that Mathematica had a similar function.
