Gene-o

Hi, A friends computer crashed never to run again. We installed the hard drive in our computer and got some things off of it. They had Microsoft Works v4.5 and we got the folder MSWKSCAL.WCD that we think has all their calendar files on it but it won't open in version 8. Do we have the right file and how do we convert it to work with the calendar in version 8? Thank you for any help you can give. Gene