IBOOKS file extension is used by iBooks Author software. The tool allow users to create digital books that offer interactive content using dedicated widgets. Ibooks Author is a WYSIWYG (‘what you see is what you get’) type of editor. IBOOKS file stores data in EPUB 3 format.

Users creating digital books can utilize various tools and elements, such as text, graphics, videos, etc. Finished projects can be exported into PDF or other text format.