By recollection (I dont 'have my Word CD handy to check) during the
installation you can specify what file format filters to include. In my
install I picked everything and it will read/write most versions of
Works file.
First, simply try opening the files to see if they open up. If install,
Word should pick the right filter if installed, I believe.
If not work, did out the Word/Office CD and look for these as install
optoins.