These are the internal FSLabs a/c configurations showing on my AppData folder. I am assuming those the ones you are refering to.
No, the ones in %APPDATA% are not the GSX internal ones, these are the ones you modified, if you haven't changed anything in the airplane, you are not supposed to see anything there, and GSX should report "Internal database" in the Airplane configuration editor.
To use the default GSX configuration, remove or move away all those files and restart Couatl, and confirm the aircraft editor says "Internal Database"