Home : File Types : KFX File

.KFX File Extension

2 file types use the .kfx file extension.

File Type 1Amazon KF10 eBook File

4.4 (5 Votes)
CategoryeBook Files

What is a KFX file?

A KFX file is an eBook created in the Kindle Format 10 (KF10), Amazon's successor to the .AZW3 (Kindle 8) format. It contains an Amazon eBook, which includes the text and metadata describing the book, such as the author, title, and number of pages. KFX files support enhanced typesetting capabilities that are not provided in previous formats, such as hyphenation, improved character placement and word spacing, and a more adaptable page layout and margins.

More Information

Screenshot of a .kfx file in Kindle for Mac 1.2

KFX file open in Kindle for Mac 1.2

eBooks may be saved in one of several formats. The format of an eBook downloaded from the Amazon store depends on the device being used to download and read the eBook. It may be saved in the KFX format or in the .MOBI, .AZW, or .AZW3 formats.

To open and view eBooks saved in the KFX format, Amazon provides a Kindle app for Windows, macOS, Android, and iOS. You can also use Calibre, a popular program for managing and opening various eBook formats.

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Programs that open KFX files
Updated 9/19/2017

File Type 2Kofax Image File

3.0 (2 Votes)
CategoryRaster Image Files

.KFX File Association 2

Raster image created by Kofax scanning and imaging software products; contains a graphic formatted as a Kofax Group 4 image; contains a 128 byte header, which includes information about the image size, date created, date modified, bit depth, and resolution; also contains a description text field.

Programs that open KFX files
XnView MP
Corel PaintShop Pro 2020
XnView MP
Updated 5/13/2010

About KFX Files

Our goal is to help you understand what a file with a *.kfx suffix is and how to open it.

All file types, file format descriptions, and software programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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