By default, all software supports multiple file extensions. Crossword Compiler supports at least 2 different file extensions. The basic files that Crossword Compiler supports are .CCW. However, not all of the extensions listed on the list are always used to save the effects of work in Crossword Compiler. Very often, files with such extensions are used as source data files used by Crossword Compiler.
Crossword Compiler can be used to convert file formats between the file extensions listed below. You can open a file with one of the file extensions below via Crossword Compiler and try to save it in another file format, also supported by Crossword Compiler.