assalam o alaikum

Meray office may secuirty cam hy jis ki movie full month ki rakni hoti hy, movie avi format may hy and bht heavy hy, and ki kam ki cheez bhi nhihy us may, may cahta hu us movie ko is trh save rako ky 2x ya 4x ki speed sy movie play ho yani jo save file ho wo 2x ya 4x ki speed sy chalay yani fast forward . konsa software yay kam karay ga uar kaisy ..plz help ???