From 'another place'
"Some versions of Works came with Word - if you are lucky, you can go to the Tools Menu -> Options, then click the Save tab. You should have an option there to change to the .doc format to save files.
If you are unlucky and do not have the version with Word, then there is no way to change the default."
So if it ain't there you ain't got it. Have you got a 'save as rtf' option? Word will read that.