To download GADM data version 3.6 , you should use the GADM version 3.6 download page for individual countries or the world download page for global datasets. 1. Download by Country (Recommended)
Now I faced a choice of file formats. GADM v3.6 offers three main flavors, and picking the right one is essential for the workflow: download gadm data version 36 work
NAME_1, VARNAME_1.I decided on Geopackage. It’s lighter, handles character encoding (like special characters in foreign names) better, and doesn’t clutter my folder with .dbf, .shx, and .prj files. To download GADM data version 3