Why reinvent the wheel? Do a Google group search and you will find lots of
answers to that question in the Microsoft Excel newsgroups. You have not
stated if the file has an Open password or a Protection password. Either way
there is software (some free) out there to crack the code.

--
Bernard Liengme
www.stfx.ca/people/bliengme
remove CAPS in email address


"Chris Wagoner" <Chris wrote in message
...
I have been working on a password protected Excel file. I have been able to
identify the Encryption key that was used by MS Excel. But now I need to
know
how to decrypt the file using the encryption key.

This file is part of a criminal investigation.

Any assistance would be appreciated.

Commander Chris Wagoner
Computer Crime Investigations
Santa Fe Community College Police Department