Hii MACROPOD,

Thanks for your reply, I know, Office 2010 is using CryptoAPI. I want to know that Microsoft is using an algorithm for its password encryption in office 2007. Microsoft has updated its algorithm for office 2010 for increasing its security. I have got the algorithm but i think its not proper algorithm(something is missing), just an overview of encryption steps.Can you please help me out regarding this encryption steps problem. Any type of your help is truely welcomed.