ATASCIIView is a program that allows you to view and print out atari 8-bit formatted text files on a Windows PC and is available to download from here.
ATASCIIView supports the true-type fonts available from Mark L. Simonson's web site or archived copy.
Now also available: ATASCIIView for Mac and ATASCIIView (.Net Version).
Another more streamlined Windows program for viewing atari text and binary files called 'Memopad' was available from: http://joyfulcoder.com/software/memopad/ archived copy
Here is a table of ATASCII default characters: