The purpose of this research are to find out the filing system existing and to find out the filing system effectivities at PT PLN (Persero) Rayon Semarang Tengah. The method in collecting data was observation, experiment, guide, interview, and literature study. This researched was conducted in 25 working days at PT PLN (Persero) Rayon Semarang Tengah and the data shows that the retrievin…