LanguageKFX
Kindle ebook (format 10)
File type: E-book file
Files with kfx extension are ebooks in latest Amazon Kindle format (Format 10).
Found 2 different file type records with the same kfx filename suffix.
What is kfx file?
File type category:
E-book file
Date updated: December 9, 2024
File extension kfx is best known for ebooks from Amazon Kindle. KFX, also known as format 10, is the successor to the previously used AZW3 format (format 8).
The KFX format provides several enhancements over older Kindle formats, such as improved typography and layout, and supports more advanced content, such as interactive content and pop-up footnotes. This format is designed to make eBooks look more like their physical counterparts, with the same fonts, layouts, and typesetting.
It is primarily intended for the Kindle, but some desktop ebook managers may handle it as well.
How to open kfx file?
Except for Kindle, Calibre is a popular software to read these ebooks.
How to convert kfx file?
These files are often DRM protected and thus no conversion is possible.
Suggested software to open kfx file:
Associated software actions with the kfx file
Programs for viewing kfx files:
Amazon Kindle for PC (Microsoft Windows)
Calibre (Microsoft Windows)
Amazon Kindle for Mac (Apple macOS / Mac OS X)
Calibre for Mac (Apple macOS / Mac OS X)
Calibre for Linux (Linux/Unix)
Amazon Kindle for iPhone (Apple iOS)
Amazon Kindle for Android (Google Android)
Amazon Kindle (Amazon Kindle)
Kofax Group 4 bitmap graphics
File type category:
Bitmap image file
Date updated: June 23, 2025
The kfx file extension is associated with the Kofax Group, a some kind of picture image editing software probably developed for Atari 8-bit computers.
The kfx file stores bitmap graphics (56x60, mono).
How to open kfx file?
Use XnView to view content of *.kfx files.
How to convert kfx file?
XnView is able to export *.kfx files to other formats.
Associated software actions with the kfx file
Programs for viewing kfx files:
XnView MP (Multiplatform)
RECOIL (Multiplatform)
Software apps that print kfx files:
XnView MP (Multiplatform)
RECOIL (Multiplatform)