XXXXX.FLT FILES

Is there any "tutorial", or otherwise that would explain the different sections of the xxxx.flt file? Specifically the
[Tower], [Track] and [SimVars.0] sections.
[Tower], [Track] and [SimVars.0] sections.

Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=30&t=88260