If the file edit does not stick (the game overwrites it), you can try forcing the language through Steam:

If you are playing on GOG, you can change it via the installation settings: in your "Owned games". Customization button in the top bar → Manage installation Choose the to download the new version. Alternatively: Look for a Language_setup.exe

Steam may download a small update containing the localized text and audio files for that language. Once finished, launch the game. 2. Editing the "sku.ini" File (PC Manual Method)