1. When you extract the savefile from the cloud it should be put into the folder with CloudExtract
2. Your PlayerUID can be found on the first line of your savefile, or, if you put it into the savegame editor, you will see it under the Main Values tab
3. If you extract and upload your save without the bypass you will be banned, if you do it with bypass your safe
4. If you edit your save with the bypass, you can close the game and take off the bypass if you want to with no worry
5. Yes, your savefile will be there untill you change it
Hope this helps you out