Just so I have this straight, you are on a PC. You have a .cwk (stands for ClarisWorks, which is what AW used to be) file. It was created by AW, on a Mac. You don't have a Mac with AW on it handy, to open the file and save it as something else. You need to open that .cwk file with a PC that has Word or Works on it, but it doesn't have the translator to open the file. Am I right?
The easiest way is to convert it through a Mac with AppleWorks. If that's not an option, you can buy Conversions Plus from Dataviz. It's about $70, but you can D/L it and use it right away. Good to have if this happens a lot, not just for Mac files. You can buy an older version of Claris Works, or Apple Works for Windows, but that would be a last resort.
Or you could try the newest version of Corels WordPerfect Suite. Trial version
HERE. Warning it's about 178MB, and I don't know if it will have the correct translators. You could see if M$ has a translator for whatever you're using.
Or, you could ask someone to open it if they have AW and translate it to something else. If they're nice enough, and you don't mind the doc being read. Alas, I use Office, so I'm afraid I can't help you.