The only “manual” is the help included in Suneido (in the standard download). It’s mostly a reference but there are some tutorial sections.
I don’t know of any medical applications. (but that doesn’t mean they aren’t out there)
Suneido is used by various people and companies but it is not very widespread.
I have run into the Chrome redirection problem – it has something to do with logging in to SourceForge versus logging into the forum. I think if you log out and back in it fixes it. (I am using Chrome to post this.)
Note: Axon’s software already has export facilities. I would suggest you contact Axon directly (via your trucking client) and talk to them about the requirements.