is a format developed by the International Digital Publishing Forum. It is characterized by the XML- and XHTM-based optional use of CSS styling. The main feature of this format is the use of reflowable text (word wrap) which makes it possible to adapt the image to different device displays. The ePub file is a zip-archive with an .epub extension.
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.