Files with original_epub file extension can be found as original backup files of standard EPUB ebook. It is just renamed file extension.

Detailed description

Software that open original_epub file

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ORIGINAL_EPUB file extension - EPUB e-book backup

What is original_epub file? How to open original_epub files?

File type specification:

Backup file type icon Backup file type

E-book file type icon E-book file type

File extension original_epub is related to EPUB ebook file format and used for backup files of the original file during some conversion process, most likely through some 3rd party program like Calibre.

The default software associated to open original_epub file:

Calibre icon

Calibre  Microsoft Windows software

Company or developer:
Kovid Goyal

A very popular, open source digital publication library management program for Microsoft Windows developed by e-book users for e-book users. It supports many common, and few uncommon e-book formats, like azw, cbc, cbr, cbz, epub, htmlz, lit etc.

Help how to open:

Just rename the file extension back to EPUB and open it in suitable e-book reader.

How to convert:

Just rename the extension from original_epub back to epub to restore the functionality.

Find conversions from original_epub file:

original_epub to pdf

List of software applications associated to the .original_epub file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open original_epub file, edit original_epub file, convert original_epub file, view original_epub file, play original_epub file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting original_epub files.

Software that open original_epub file - EPUB e-book backup

Programs supporting the exension original_epub on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open original_epub file action.

Microsoft Windows:

Apple macOS / Mac OS X:


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