I have a spreadsheet (not mine) which when opened displays no tool bars,
scroll bars, or row and column headers. I know it is easy to break a
password on Excel and I'd like to be able to convert some of the sheets I
send out to various people in our organisation to the above format. I would
think it would be very difficult for an unauthorised user to get behind the
scenes.

How do you create a spreadsheet that looks like that? Can the readily
available password crackers be used on a sheet like this?