
Kindles now support the EPUB file format used by many other e-book readers. Kindle devices and apps are designed to use Amazon's e-book formats: AZW that is based on Mobipocket in fourth generation and later Kindles, AZW3, also called KF8 and in seventh generation and later Kindles, KFX. azw3 extension, and version 10 introduced a new typesetting and layout engine featuring hyphens, kerning, & ligatures and have the.

azw version 8 (KF8) introduced HTML5 & CSS3 features and have the. E-book files in the Kindle File Format originally had the filename extension.

Kindle File Format is a proprietary e-book file format created by that can be downloaded and read on devices like smartphones, tablets, computers, or e-readers that have Amazon's Kindle app.
