okay first download this tool
https://forums.sinsofasolarempire.com/322559
then make a copy of you GameInfo file
use the tool on the Gameinfo file
in the Gameinfo file there should be the noted files there (with Race and # being set to whatever race and level starting at 0 - 7)
should have them set to text and from there it is pretty easy to understand what needs to be changed
put the changed gameinfo file into a file in the mod directory (use the location that is reported in the mod option area of the game)
if any questions to the steps feel free to ask again