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What are BOOK files and how to open them

Are you having problems opening a BOOK file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your BOOK files.

What is a BOOK file?

BOOK files have multiple uses, and Cybiko Cybook eBook is one of them. Read more about the other uses further down the page.

Cybiko Cybook eBook

These BOOK files contain the audio ebooks used on the Cybiko, a Russian handheld computer released in April 2000. Cybiko was used to play games, text with friends, and listen to music. The MP3 player add-on combined with a SmartMedia card was used to listen to the audio ebooks.

How to open BOOK files

Important: Different programs may use files with the BOOK file extension for different purposes, so unless you are sure which format your BOOK file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested eight different BOOK openers which you will find listed below.

Last updated: September 21, 2023

All known file formats using extension .BOOK

While Cybiko Cybook eBook is a popular type of BOOK-file, we know of 4 different uses of the .BOOK file extension. Different software may use files with the same extension for different types of data.

FrameMaker book

These BOOK files contain the content created in Adobe FrameMaker, an authoring and publishing software. FrameMaker is a powerful content creation tool that makes working on content effortless. You can reuse and maintain consistency if you move your content to FrameMaker.

ICE Book Reader eBook

These BOOK files contain the imported TXT, RTF, HTML, and MS Word documents used in ICE Book Reader, a software used to make reading larger text files more convenient and effective. This software helps reduce the deterioration of eyesight. It provides a more comfortable reading experience.

MaxiDesk Phone Book

We know that one BOOK format is MaxiDesk Phone Book. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Various apps that use files with this extension

These apps are known to open certain types of BOOK files. Remember, different programs may use BOOK files for different purposes, so you may need to try out a few of them to be able to open your specific file.

CalibreCalibreUser submitted
FrameMakerFrameMakerUser submitted
BookSmartBookSmartUser submitted
bs7 Modulebs7 ModuleUser submitted
myphotobook.demyphotobook.deUser submitted
Biblia UniversalisBiblia UniversalisUser submitted
FrameViewerFrameViewerUser submitted

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about BOOK file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.