This little tool parses your folder looking for .dat, .sim, .zon, .dsd, .cam, .val, .sdl, .off files, and serializes them to JSON format, saving into a new file with a .json extension.
I was trying to compare some modded files to see changes, and I gave up because it was exhausting to compare using S3D. I couldn't find any tool for this (am I blind?) but I found a GitHub project by skwasjer with sources used for S3D and I played around. I hope it can be useful for someone. Probably needs some fixes, etc., because I am lazy, this is probably hacky and I didn't test much, but it works for me and here is the source:
I named it in the spirit of "sh3" tools
https://github.com/bukowa/sh3xtractjson, and here you can download it:
https://github.com/bukowa/sh3xtractjson/releases.