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.
This is a bitmap image format used in the VisiQuest Khoros visualization software suite. VIFF can be used to store bitmaps that are made up of color zones. It can store up to 2–3 color maps, and it is used to analyze visual data in research software.