Hey Carlito,
I might have misspecified that. It's in the Engine Data Path, which is in the game installation folder.
For a regular Steam installation it would look similar to this:
C:\Program Files (x86)\Steam\steamapps\common\Divinity Original Sin 2\Data\Editor\Localization
Sincerely,
Kevin
I have the gog version, lastest patch installed, editor version 3.0.182.134 and i have the game installed at D:\GOG\Divinity - Original Sin 2. Inside \Data\Editor\ there is not localization folder here. I have installed the editor following the instructions at "!ReadMe.txt". So i don't know why isn't there.
The only localization folder i have is here: D:\GOG\Divinity - Original Sin 2\Data\Localization (english.pak and other languages).