Your friend doesn't sound like much of a friend.

Regardless, Excel thinks there's a password, so you'll need to find it, or
abandon the spreadsheet. To try to break the password, just Google "Excel
password breaker". You'll get lots of choices.

Regards,
Fred.

"Beck" wrote in message
...
What i should do to change password on excel? I don't know how my friend
put
protection, but know he doesn't know how to change password. when i start
excel it requesting password. i put it but button to protect or encrypt
don't
work. so how i can change password?