Open cwk. doc in OSX 10.9.5?

I have a couple of old documents which I believe I made in Appleworks 6.0 (not positive of that). I can't open them in anything I can find on my computer (2.5 GHz Intel Core i5, OSX 10.9.5). Can anyone help me with this? Is there a third-party app, or a service, or some way to open these files? They are complex to re-do; lines at angles, some print, etc. I really don't want to have to re-make them! Thanks!

Judy