Trying to transfer files from an older Mac (10.4.11) to a newer one (10.11.6) and Appleworks has been discontinued.
You may start reading this old thread:
It seems that Calc + Impress can import/export Appleworks cwk files, though I am unsure of any further details:-
- 6.x Calc Import/Export Filters:- cwk ClarisWorks/AppleWorks Spreadsheet (ClarisWorks_Calc)
- 6.x Impress Import/Export Filters:- cwk ClarisWorks/AppleWorks Presentation