Before diving into the "how," we must understand the "what." An AutoCAD 2018 Language Pack is not a standalone piece of software. It is a modular add-on that overlays your existing English (or other base language) installation to change the user interface (UI).
Commonly offered language packs for AutoCAD 2018 include: Arabic, Chinese (Simplified and Traditional), Czech, Danish, Dutch, English, Finnish, French, German, Hebrew, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese (Brazil), Russian, Spanish, Swedish, Turkish, and others. Availability depends on Autodesk’s distribution for that release. autocad 2018 language pack