Overtime Office Work Escape

Escape from the locked office by using things you can find.

Assume that you are working overtime at your office and the security guard has locked the office not knowing that you are still in the office. You want to go home now but you don’t have the key unlock the door and there is no way to call for help. You will have to escape from the office on your own by solving the puzzles and using whatever things you can find in the office. All the best and have fun!