Using the AutoCAD Language Pack 2018 is simple:
To install a language pack for AutoCAD 2018 , you generally download it from your Autodesk Account and run it as a separate installer autocad language pack 2018
An AutoCAD language pack is a free add-on that changes the user interface, dialog boxes, menus, and help documentation into a specific language. Using the AutoCAD Language Pack 2018 is simple:
On the main installation screen, click the Install button. click the Install button.