Original eBook Reader e-book
File type: E-book file
Files with orb file extension can be typically found as ebooks in the Original eBook Reader format.
Found 2 different file type records with the same orb filename suffix.
File type category:
E-book file
Date updated: August 1, 2022
Record marked as obsolete and not updated for a long time.
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.
Only special readers can view *.orb e-books.
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.
Programs for viewing orb files:
Apple macOS / Mac OS X
ORB eBook Reader for Mac
File type category:
Various data file
Date updated: October 14, 2026
The orb file extension is associated with applications developed by Evanidus.
An orb file can contain various data required for the internal operation of Evanidus applications.
This data file format appears to be obsolete.
Open an orb file with the Evanidus application that created it, if that application is still available. The file may not be meaningful when opened separately because it contains internal application data.
If the associated Evanidus application supports exporting its data, use that application's export function to convert the data.
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