Are you saying none of those will import those files? How about
"import as txt" or csv or ANYTHING.
Shot in the dark, but maybe try an online file conversion
service.
Google for them, there are quite a few.
You could try spread32 from http://www.xtort.net/office-and-
productivity/floppy-office/
You never know.
Also, if you open them in a real file editor (not notepad, a
better substitute, like Edxor) you might be able to extract the
text or convert them to csv or something.
You mighty also try a newsgroup with mac or excel (or both) in
the name.