What Is an AZW File?

A file with the AZW file extension is a Kindle eBook Format file. It’s based on the Mobipocket (MOBI) format and has usually been DRM protected to prevent copying. These files can store things like bookmarks, annotations, last read position, page numbers that correlate to the physical version of the book, and more. Newer Kindles use KFX (KF10 format) or AZW3 (KF8 format) files for eBooks.

How to Open an AZW File

How to Convert an AZW File

The easiest way to convert an AZW file to another eBook format (or convert another format to AZW) is with Calibre. It supports not only popular formats like EPUB, MOBI, PDF, AZW3, and DOCX, but also PDB, RTF, SNB, LIT, and others. There are also some free document file converters that you can use to convert the AZW file to another format. Zamzar is our favorite because it works in a web browser, is very simple to use and understand, and supports converting to over a dozen eBook formats.

Still Can’t Open the File?

A common reason a file doesn’t open the way you think it should is if you’re misreading the file extension, which is really easy to do when there are only three letters. The file extension is the best way to identify the format, so getting it wrong could mean that the file doesn’t open in any of your installed programs. A few examples of file extensions that are easy to confuse for AZW include AWW, AZ!, and AZZ. Each of those are actually in entirely different formats that have nothing to do with eBooks, so attempting to open one with the programs mentioned above will not be helpful. If you have one of those files, you really have an Ability Write document, Vuze partial download file, or Cardfile database, respectively. If not, reread the file extension closely and start your research again so that you can find the right program to open or convert the file.