Since 2007, Microsoft began to use a file format docx, which is created by using the Office Open XML. The format is a zip-file containing the text in the form of XML, graphics and other data that can be translated into a sequence of bits using patent-protected binary formats. At first it was assumed that this format will replace the doc, but both formats are still used today.
Answer Wizard files are data files saved in the .aw format using an application developed by Microsoft. The Microsoft Answer Wizard Builder software is used to create these AW files, and this application can also be installed and used to open these .aw files.