Microsoft Works? I have that. I couldn't open documents with Works itself, but I was able to with the word processor function (WksWP.exe), although it opens it as a .wps file, and you can save it as that. I don't have an "open file" in Works itself, but maybe in the word processor; I didn't look too closely. I have Word, so I don't use the word processor in Works. I mostly use Works for the calendar (I love that calendar!).