Ford introduced the Fiesta in 1976. It is a very small, mini compact two-door car that is sold worldwide. The door trim on the window sills of your Fiesta is there to protect the interior electrical components of the door. It can be easily removed using a trim removal tool that can be found at an auto parts store.
Open both of the doors and locate the screws holding the door handles in place. Remove those screws with a screwdriver and set aside the screws and handles.
Insert the edge of the trim removal tool between the door frame and the trim on the door. Pry the trim away from the window sill. Work your way around the entire door until all the clips inside the door pop off.
Remove all screws holding parts of the trim in place using a screwdriver.
Remove the trim from the Fiesta by pulling it off with your hands.