The formats probably aren't so hard to reverse engineer, but I guess just nobody gives a fuck to do the work for you. When you have "so much interest", what did you do till now? Did you try anything?

"If you wanna get something done, do it yourself"

Probably of use: https://www.sweetscape.com/010editor/

You should also know some programming, otherwise it's kinda useless to know the format without the ability to write a converter/viewer/whatever. The explorative REPL for Python would be quite useful.