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Details of extension .azw3r

1 extension(s) and 0 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .azw3r file?
  • Which program can create the .azw3r file?
  • Where can you find a description of the .azw3r format?
  • What can convert .azw3r files to a different format?
  • Which MIME-type is associated with the .azw3r extension?
Amazon Kindle Format 8 Ebook Metadata .azw3r file icon

Amazon Kindle Format 8 Ebook Metadata

The AZW3R file is an Amazon Kindle Format 8 Ebook Metadata. The Kindle Fire introduced the Kindle Format 8 Ebook (KF8). KF8 supports a subset of HTML5 and CSS3 features, while also acting as a container for a backwards-compatible MOBI content document.
Category: Ebook files
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
az3, kf8
Related extensions:
.tr TomeRaider 2 E-book
.pdg SSReader Digital Book
.azw3 Amazon Kindle Format 8 Ebook
.ea Amazon Kindle End Announcement
.lrs Sony BBeB E-Book Source

Other types of files may also use the .azw3r file extension. If you have helpful information about .azw3r extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

.azw3f Amazon Kindle Ebook Metadata
.azw3 Amazon Kindle Format 8 Ebook

The .azw3r filename extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

azw3f (1), azw3 (1)

Can't open a .azw3r file?

If you want to open a .azw3r file on your computer, you just need to have the appropriate program installed. If the .azw3r association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.azw3r

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2016/2019/2022, Windows 7, Windows 8, Windows 10, Windows 11, Linux, Mac OS X, macOS, iOS, Android