How To Open an EPUB File in Linux or Windows system

Warning: Take great care when opening executable file formats received via email or downloaded from websites you're not familiar with

How To Convert an EPUB File:

There are three main ways to attempt to convert an EPUB file to another file type:

• Open the EPUB file in its default program and choose to save the open file as another file format.
   
• Download Calibre for free and use it to convert EPUB files to and from other eBook formats, including ones compatible with the Amazon Kindle.
   
• Use another File Conversion Online Service or Software Program to convert the EPUB file to another file format.

EPUB files are structured just like ZIP files, meaning that you can rename an EPUB eBook, replacing the .epub with .zip, and then open the file with your favorite file compression program, like the free 7-Zip tool. Inside you should find the contents of the EPUB eBook in HTML format, as well as the images and styles used to create the EPUB file.