Hello,
Yes, the Atari.fon font supports the atari graphic characters and even supports all the characters in reverse video.
You may also want to try my Memo Pad application for Windows. It uses the same Atari.fon file to display files using the Atari 8-bit font and also lets you convert between the common end-of-line characters.
You can download Memo Pad at:
http://joyfulcoder.com/memopad/
Thanks,
Eric