Files with orb file extension can be typically found as ebooks in the Original eBook Reader format.

There is one other file type using
the ORB file extension!

empty icon.orb - Evanidus data

Detailed description

Software that open orb file

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ORB file extension - Original eBook Reader e-book

What is orb file? How to open orb files?

File type specification:

E-book file type icon E-book file type

The orb file extension is used for a fairly new ebook format - ORB (Original eBook Reader). It only works on special ORB readers and is based on Flash.

As matter of fact, an orb file is a simple ZIP archives that contains several .gau files that are just renamed .swf files for each page in the e-book.

This orb file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

Updated: August 1, 2022

The default software associated to open orb file:

ORB eBook Reader for Mac picture or screenshot

ORB eBook Reader for Mac  Apple macOS / Mac OS X software

Company or developer:
Nothing But The Truth

ORB Reader is a unique app that is capable of reading and viewing ebooks in ORB format.

Help how to open:

Only special readers can view *.orb e-books.

How to convert:

There is currently no way how to directly and easily convert ORB format to something else. But, you can use some of the more or less complicated workarounds.

List of recommended software applications associated to the .orb 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 orb file, edit orb file, convert orb file, view orb file, play orb file etc. (if exist software for corresponding action in's database).

orb file viewer - programs that view orb file - Original eBook Reader e-book

Programs supporting the exension orb on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about ORB eBook Reader for Mac for view orb file action.

Apple macOS / Mac OS X:

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