READ_ME.txt for VIEWERS under Microsoft Windows 18 July 2011 Text-file scaling.txt is written in the old IBM PC Extended ASCII font no longer supported by the latest versions of MS Windows. To read those files try in command mode (like "view.exe scaling.txt") one of these four MS DOS file-viewers: LIST.COM , V1EW.COM , VIEW.EXE , WPVIEW.EXE The last one, wpview.exe, may require that [F8] be pressed to let you select TEXT view. The first one, list.com, may require that [Alt] [E] be pressed to get sufficiently many lines onto the screen. Notepad in Windows 2000 can read IBM PC Extended ASCII files by using its font called "Terminal". A readable text size is 14. Old Macintoshes can read those files usimg the font "MS LineDraw" . I don't know what fonts to use under UNIX or Mac OS 10, nor how to get MS Windows to pass the Extended ASCII font on to a printer. W. Kahan