Can anyone minister to me sympathetic a locked steel cabinet? Me and my mum are trying to get rid of an antediluvian...

Me and my mum are trying to get rid of an antediluvian metal filing cabinet we've have for years, however we lost the keys yonks ago and want to check that here is nothing surrounded by there formerly we throw it, I have tried knife scissors and all sorts of instruments and it hasn't even get a scratch on it. We don't hold a drill so can't drill it out. Any help much appreciated. JO X
Answers:    A obedient kick will fix like mad of things. glad you got it start on.
have you ever watch mythbusters....?
when all else fail blow it up!