Copy the extracted Language.Xuanze files/folders into your The Sims 4 game installation directory.
: Your specific game installation lacks the local language asset files (.package files) for the language you selected. 3DMGAME-The-Sims-4-Language-Selector-Xuanze-Tools
: The 3DMGAME tool bypassed these barriers. The word Xuanze (选择) translates to "Choose" or "Select" in Mandarin. This small executable acts as a graphical user interface (GUI) that instantly rewrites the game's configuration files to unlock hidden language tracks already sitting on the hard drive. Step-by-Step: How the Tool is Used Copy the extracted Language
Before running any third-party executable file on your game directory, backup your data. Copy your Documents\Electronic Arts\The Sims 4\Saves folder to a safe location on your desktop. Step 2: Download and Extract the Tool 3DMGAME-The-Sims-4-Language-Selector-Xuanze-Tools