To install a language pack for AutoCAD 2018 , you generally download it from your Autodesk Account and run it as a separate installer
How to Install AutoCAD Language Pack 2018 autocad language pack 2018
Since AutoCAD 2018 is a legacy version (no longer supported with new development), it is not available on the main Autodesk Account page by default. Here is how to find it: To install a language pack for AutoCAD 2018
The primary purpose of a language pack is to provide a localized experience for users who prefer working in their native tongue or who work in multinational environments. Download and Run: Since AutoCAD 2018 is a
CUILOAD in AutoCAD.MENU and reset to the default base menu (e.g., acad.cuix for the new language).Select Language: Switch to the Languages tab, select your desired language (e.g., French, Italian, or Czech), and click Download. 2. Alternative Methods