WHY CAN'T I DOWNLOAD THE GAME!?

Hi i was trying to download and play pokemon xenoverse on Android and don't worry I'm using joiplay but I JUST CAN'T GET THE BASE GAME!! when i go to the official website to download it just shows a file called 'setup msi' i have downloaded it but i don't know what to do next.

Please someone help I really wanna play this game !!

Thanks in advance!