docXConverter is a program for opening and using files saved in the new Word 2007 format, docx, in the Excel 2007 format, xlsx and in the AppleWorks cwk format. It allows you to open docx, xlsx or cwk files with a program currently installed on your computer, even if none of your programs are capable of doing so on their own.
docXConverter converts the docx file to RTF, and instructs one of the programs on your computer to open that RTF file.