Adding external html into WordPress

I am trying to add my playlist files into the site. What I am hoping to do is to make it look exactly the same as the rest of the site; same formatting etc. Problem is – they are very large html (can be php) files. 27 of them. (playlistA , B etc..) Is there a way to add the left and right columns and the stylesheet, without doing 27 internal ‘pages?’

Thanks in advance!