I am using a mac tiger, I have word, can I open a claris works file?
Word can't open ClarisWorks files unless they've been saved as Word files first in the ClarisWorks application. You'll probably need to buy AppleWorks which Apple released to replace ClarisWorks. However, I just discovered that AppleWorks is no longer available either. They've replaced it with "iWorks":
http://www.apple.com/iwork/I'm not saying that will definitley open CW files. You'll have to research that yourself or try and get hold a trial version before spending your money on it.