File extension azw2 is used by following file type(s):

File extension azw2 file type description:
Amazon Kindle program file

The AZW2 file extension is associated with the Amazon Kindle e-book reader.

An .azw2 file is equivalent of Java JAR format and is used to execute various programs on Amazon Kindle.

that open azw2 files:
Amazon Kindle (other devices) (Windows Phone/Metro)