if all you want to do is READ them, there are free readers available on the web site.
go to microdots and search for wps reader.
or google for it.
if you wish to edit/change them . then you need to have a program similar in function to the one that created them, like works.
open office may do it as well, might check on it. its FREE.
(e-mail address removed)
They were regular document files in WinXP My Docs on a previous computer.
We always backed up to USB hard drive.
When I put the USB on this current computer, and transferred the file to My
Docs, I found they were all in .wps files, and windows cannot open.
I'm not at all sure how they got that way.