AZW3F filename extensions is associated with Amazon Kindle ebook readers, a series of dedicated digital book and publication reading devices.

AZW3F files store metadata for AZW3 ebook files. AZW3F files are saved in the same folder as related AZW3 files. Metadata held by AZW3F files comprise such information as title, author, number of pages, etc. AZW3F files should not be opened manually.