Best standardized file structure for schedulers, scheduling, schedules - for engineering and construction AEC

Best standardized file structure for schedulers, scheduling, schedules for construction.  - how is yours? I always thought a great business idea would be to sell standardized file structures - but I doubt it would go in depth enough for schedulers.  We usually just gets "schedules".  I will try and share what I come up with.  I have looked on line, the closest I came up with was this:  https://www.build-on-prince.com/cgi-bin/fb/FormProcess.pl  but it is not too in depth for schedules.  It would be nice to have to re-invent the wheel.