No.
If you can open it in Microsoft Works, you should be able to export the data as a tab- or comma- delimited text file, DBF file or SYLK file, depending on the version of Works, then import it into Appleworks as an ASCII file.
This will get the data out, but it will lose all of the formulae, layouts, calculations, scripts, etc.
However, Appleworks is also a deadend product, if this is important data, he should consider porting it to a current database program - Filemaker Pro being the obvious first one to consider.