4 File Transfer windows are spinning, can't force quit???

I was bluetooth transferring my photo gallery from my Android to my MBP. The first few pictures transferred ok. I added a few more and now have 4 File Transfer windows open. The pinwheel keeps spinning. There is no force quit. I disconnected the bluetooth programs on the phone and on the laptop. I've tried everything and can't get rid of them. What is my next option?