Data Dictionary for files exported from Samsung Health

I just recently begun trying to analyze data collected by Samsung phone and Galaxy watch through Samsung Health and then exported from Samsung Health. The export creates a large number of csv and json files. So far searching I have not been able to find any descriptions of the file formats (and they are not clear to me on examination). I did find 1 or 2 posts on the internet from a couple of years ago of people trying to figure out the same thing. It appears they never got an answer and the files may have changed significantly. Also, I have never used json files.

Any links to descriptions of the current file formats would be appreciated.

Also, I have searched for articles of someone using SAS to analysis these files. Great opportunity here.

Any and all help would be appreciated.