I'd like to know if anyone was successful in trying to mod that file.

I tried to just modified it and copy it in my games/elemental/units folder with modified values (drastically, like no consnant and only vowels, or words with an exact length of 30à and nothing changes. I tried to put the new file in mods and allowed mods in-game. But nothing.

Any clue how I could do it ?

Maybe there's something hard coded, because all names have a capital letter at start but the file doesn't have any generation rule for the capital letter ...

EDIT : How can I be so noob after years of Neverwinter nights 1 and 2 modding -__- ? The file was WorldNameRuleset. And I copied it in "My games/Elemental/Units" folder and it work. Only warning when changing things : the minimal and maximal length musn't be the exact same ! I got CTD with that. Maybe it's beacause there's double consonants and vowels, so the game can't create a word with an exact length.