Is a file used for eBooks on Amazon Kindle devices. It is the predecessor to the AZW, which offers support for HTML5 and CSS3 unlike AZW3.
FictionBook 2.0 File Format
Is a popular eBook format developed in Russia, which utilises the XML mark-up language. It can be opened by most eBook readers though in some cases it will have to be converted into a proprietary format.
How to use this AZW3 to FB2 converter
Drop your AZW3 file into the box, or click to select a file from your computer.
Review file and click remove if you would like to choose another.
Click convert. Your file will upload and the conversion process will begin. Larger files will take longer to convert.
Your new FB2 file will appear below. Click download to save to your computer.