Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .oby

1 extension(s) and 0 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .oby file?
  • Which program can create the .oby file?
  • Where can you find a description of the .oby format?
  • What can convert .oby files to a different format?
  • Which MIME-type is associated with the .oby extension?
EPOC ROM Image .oby file icon


The OBY file is an EPOC ROM Image. EPOC is a mobile operating system developed by Psion. The 32-bit version was renamed Symbian OS.
Detailed description not available
Category: Other files
Application: EPOC
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
EPOC Software Platform Data
EPOC Model Definitions Data
EPOC Makefile for MARM Platform
EPOC Makefile for WINS Platform

Other types of files may also use the .oby file extension. If you have helpful information about .oby extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

PSpice Data
Symbian ROM Image Component Include
Oracle Documaker Library Data
IBM LinkWay Object
ZBrush Mesh Data
Hitachi Ladder Editor Object Program
Intel Relocatable Object Module
Microsoft Office Binder Template
WindLDR Device Data List

The .oby filename extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

iby (1), obu (1), obj (1), obg (1), lby (1), by (1), oyb (1), obt (1), obh (1), ob (1)

Can't open a .oby file?

If you want to open a .oby file on your computer, you just need to have the appropriate program installed. If the .oby association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.oby

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android