What Is EPUB File Structure

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What Is the EPUB file structure?

✍: FYIcenter.com

A

An EPUB file is actually a ZIP archive file that contains the following types of files in sub-folders:

HTML, image and audio files for book contents.
CSS files for presentation.
OPF files for book structure and navigations.
Other resource and meta files.

Here is a list of files and sub-folders in a very simple EPUB file:

|-- mimetype
|-- package.opf
|-- content.xhtml
|-- navigation.xhtml
|-- META-INF
    |-- container.xml

EPUB specification is developed by the W3C EPUB 3 Community Group. Here is a list of EPUB versions and their release dates:

Version      Release Date
----------   ------------
EPUB 3.3     Draft
EPUB 3.2     May  8, 2019
EPUB 3.1     Jan 25, 2017
EPUB 3.0.1   2014
EPUB 3.0     Oct 11, 2011
EPUB 2.0     2007

⇒ What Is OPF

⇐ What Is EPUB

⇑ Introduction to EPUB

⇑⇑ EPUB Tutorials

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Where can I download the EPUB 3.0 sample book "Year Five Maths" by Infogrid Pacific? You can following this tutorial to download the EPUB 3.0 sample book "Year Five Maths" by Infogrid Pacific. 1. Go to infogridpacific.com Free ePub3 Books page. 2. Click "Year Five Maths: Operations on Numbers (852KB... 2022-07-26, 1456👍, 0💬

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What Is EPUB? EPUB is an e-book file format with the extension .epub that can be downloaded and read on devices like smartphones, tablets, computers, or e-readers. It is a technical standard published by the International Digital Publishing Forum (IDPF). The term is short for electronic publication ... 2022-07-26, 1045👍, 0💬

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What is OPF? OPF (Open Packaging Format) is a standard that is a part of the EPUB eBook specification. The OPF files store information for an associated eBook including the title of the eBook, the eBook language, creator, reading order and book ID. The OPF file is included in the EPUB archive to spe... 2022-07-26, 1019👍, 0💬

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