I've stupped to opening .png files with "notepad". you can read them. they are just text with some extras. some chess programs have an option you can import them.
Download PGN ??

You need to install a .pgn viewer, you can either do a google search for them, or check out this page: http://www.chess.com/downloads/pgn+utilities .
I am trying to download the notation from a game I had analized , and my computer cant read the PGN form it downloads in , any help would be great I am not very good with PC technolgy