Identifying File Encryption

[johns420 0]

I was curious if anyone knew of a way to determine the method of encryption of a file or folder. I realize that this isnt directly related to auto it but these forums have been a great help in the past.

I have a file of unknown origin that I know to be encrypted. I do not know the algorithm that it was encrypted with though and that is what I would like to discover.

Any help at all would be great.

Thanks all