Assalam-o-Alaikum

Meri ek Important file hai Excell ki us mian kisi ne password laga dia hai open karnay p password maangta hai, maine bohat se password dye but....woh file Important hai bohat plz mujhe password ceack karnay k tareeqa koi bata day ya is file ko open karnay ka tareeqa bata day...Plz.......