2-hour exercise at work

sumlucero

I usually arrive 2 hours early at work. Since i'm still alone in my office, can some recommend what kind of exercise i can do during those free time? My goal is ti shed 60 pounds in 6 months. I have started my 1200 calorie/day diet last week and i need to pair it with exercise. Those 2-hour a day in the morning are my only free time. Thanks!