.CW3 File Extension Information

What program uses .CW3 file extension?

Program : Crossword Construction Kit Puzzle Group
Program Website: Crossword Construction Kit Puzzle Group

Extensions starting with

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | #-0-9