ftp.nice.ch/pub/next/developer/objc/appkit/Crossword.examples.tar.gz#/Example

Puzzle #1.xword
 
Puzzle #2.xword
 
Puzzle #3.xword
 
Puzzle #4.xword
 

These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.