I made some modifications to the base 2019 roster and want to use it for all future 2019 games-How do I save this- So I can use it for the future?

In the mod forums there is a CSV<->JSON converter to help move files back and forth if you are going to be editing them.

Brooks_Piggott wrote:In the mod forums there is a CSV<->JSON converter to help move files back and forth if you are going to be editing them.

What file are players saved under? So after i edit i can convert?

Go into search and export All Players which goes into your league folder as AllPlayers.json. That's the file you can convert to csv, edit, convert back to json and then import.