Larian Studios Forums Divinity - Original Sin Divinity Original Sin - Mods Publishing a Mod

It was a very 'stupid' search I did, I loaded the .exe in Notepad++ and searched for known strings like 'Raistlin' (or something else, dont't remember anymore). In the vicinity of this string I found something that looked like the GUIDs (?) that are in the English.xml. I loaded English.xml, searched for this GUID and found found what I had expected.

So, it is a very stupid search but after all, the GUIDs must be somewhere in the .exe or else the game would have to work with hardcoded translations for every supported language.

As you have already seen, the TranslatedKeyString editor has absolutely nothing to do with localization or 'translation'.
(To provide translations, you'd also have to unpack these 'translated string key' files with Norbyte's tool and add handles manually.)