The File Extensions Database

.AZW3F File Extension

  • Developer by: Amazon
  • Category: Data Files

What is an .AZW3F file?

.AZW3F is Amazon eBook Metadata File

An AZW3F file is a metadata file used by Amazon Kindle, an e-reader device. It contains metadata, such as the author and number of pages, for an .AZW3 eBook file, which is an Amazon KF8 eBook format that replaced the .AZW file format.

Since AZW3F files store metadata for AZW3 files, they typically are stored in the same directory. AZW3F files are typically located in the .sdr directory on the Kindle. Therefore, if you come across an AZW3F file, there most likely is an AZW3 file nearby. However, even though AZW3 files are meant to be opened, you should not open AZW3F files.

Common AZW3F Filenames

[same name as AZW3 file].azw3f - AZW3F files bear the same name as the AZW3 file for which they store metadata.

Programs that open Amazon eBook Metadata File
Amazon Kindle for PC
Amazon Kindle for Mac

How to solve problems with AZW3F files

  • Associate the AZW3F file extension with the correct application. On :
    Windows: Right click on any AZW3F file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.AZW3F files". Mac: Right click (or Ctrl-click) the AZW3F file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .AZW3F is Amazon eBook Metadata File. Because only the current version supports the latest AZW3F file format. Search, therefore, e.g. on the Amazon manufacturer website after an available .AZW3F is Amazon eBook Metadata File update.
  • To make sure that your AZW3F file is not corrupted or virus-infected, get the file again and scan it with antivirus software.