OH you need to extract it first. (find a tutorial on how OR) you can get winRAR. I really suggest it. If you want to extract it though (through your folder), you should DRAG out gacha art (or gacha club, since its called gacha club in the folder.). I THINK it should say extract. I cant really remember, so im sorry. Once you extract it though, you SHOULD see the app icon, if you see it, it means its extracted! NOW you can use it. Im sorry if this was vague. Just watch a tutorial if you dont understand.