have you tried using notepad to view the contents?
it may be possible via dos to copy the files to your pc but they may be in a format that windows does not understand.
try opening the files through notepad or wordpad, maybe even microsoft office or msworks whatever you have available
if no joy i wil explain the DOS way but it isn't going to be easy.
as you still have the starwriter, maybe you could open the files on there and save them as text files rather than starwriter files.
have a go and come back if you dont have any luck