Hey dude, i dont know but is the scematic files not suppose to work on 1.14 cus he only files that acully work are the litematic files, and if that is suppose to be there is there a website where i can only download litematic files, or is there some kind of converter?

Import support for old schematic files is slowly being worked on. The latest 1.14.4 build here: https://masa.dy.fi/tmp/minecraft/mods/client_mods/ has pretty decent support for loading old schematics, but there are still some small things that need fixing.