Amazon's Kindle readers support a variety of e-book formats, including MOBI, AZW, KF8/AZW3 and PRC. MOBI came from Mobipocket, which Amazon acquired in 2005, and files may use the MOBI or PRC ...

The software lets you convert ebooks into different formats, including AZW, which Amazon officially ... To prevent spamming, ...

Amazon sells content for the Kindle in a format, known as ".azw," which prevents users from violating copyright regulations and transferring files loaded with protected content to other devices.