Excel Passwords
 

Hi I recieved an email with a excel doc attached, when i tried to open it, it
asked for a password i checked with the sender and was told there was no
password then i tried the password "daysoff". the funny thing is that i had
the same thing happen on our network with some excel files so i cracked the
password and it to was "daysoff". can or does excel set a default password on
some excel docs and how can this happen on our network and also when an
external client sends me a excel doc.