Apply Filler Over Protective Film

What happens here

Take a small amount of wood filler, spackle, or a suitable exterior caulk (preferably matching the trim color, typically white) and apply it directly over each nail hole. Using your finger or a small applicator tool, firmly press the filler into each nail hole, ensuring it is completely filled and flush with the surface. Do not worry about being overly neat; allow any excess filler to spread onto the protective plastic film surrounding the hole. This film acts as a temporary, sacrificial barrier, preventing the filler from adhering to the finished trim surface.

Goal: Completely fill all nail holes without concern for excess spreading onto the film.