"ML" stands for Multi-Language. A .pkg is for Mac. A .exe is for Windows. If you are on Windows and get a .pkg file, you downloaded the wrong version.
💡 If you are looking for "v18.2.9," you are actually seeking Illustrator CC 2014 . If you need the original CS6 , you are looking for v16.0.x .
: A streamlined, modern "dark" UI that reduces eye strain and keeps the focus on your artwork. System Requirements for 32 & 64-Bit