3 file types use the .kpf file extension.

What is a KPF file?

Project file created with Komodo, a Web application development program; supports multiple languages, including PHP, Ruby, Python, Perl, and Tcl; saved in an XML format and contains a list of resources referenced by the project.

Category: Data Files

Kindle Create Publishable File

A KPF file contains an eBook created by Amazon Kindle Create, a program used to create professional-quality books to be published on the Kindle store. It stores an eBook in the Kindle Create Publishable Format (KPF), which saves the book content, table of contents, and book formatting information. KPF files can be uploaded to the Kindle Direct Publishing platform to be published and made available for download on the Kindle store by other users.

Kindle Create can be used to publish various types of books, such as novels, essays, textbooks, travel guides, cookbooks, and poem collections. To create a KPF file in Kindle Create, open the .KCB project file that stores your book, then click Publish or select File → Publish .

Depending on the type of book being published, the KPF file may also save video, images, and links to webpages. You can then upload the KPF file to Kindle Direct Publishing to be published.

Programs that open KPF files

Updated: October 25, 2019

Kex Package

A KPF file may also be a game data file used by games developed with Nightdive Studios' Kex Engine, such as Turok and Blood: Fresh Supply . It is a container file that stores assets required by a game, such as textures, models, audio files, and scripts. Gamers looking to modify elements of a game using KPF files to store assets are the primary users who encounter the files.

The Kex Engine is a game engine designed to help remaster and re-release classic video games for modern platforms, such as Turok , System Shock: Enhanced Edition , Doom + Doom II , and Blood: Fresh Supply . These games use KPF files to store and load their in-game content.

KPF files are typically bundled with the game and read at runtime by the Kex Engine to present graphics, sounds, and gameplay elements. The structure of a KPF file is specific to the engine, and users generally do not modify these files unless they are creating modifications.

KPF files are not meant to be opened. Instead, the game packaged with the KPF files automatically references them to load the content they store.

Some advanced users may extract assets from KPF files to modify them using modding tools, such as SLADE. However, doing so may not be officially supported and can affect game performance or stability.

Programs that open or reference KPF files

Updated: May 29, 2025