.O File

File extension: O

File type: File

Do you have O - related issues?
First check your registry for hidden errors.

Notes about the O file extension:

Errors in your registry are one of the common causes for incorrect file associations on your windows system. It is highly recommended that you check your registry for file association errors (will also check for any other registry errors).

The O file type is primarily associated with 'Executable and Linkable Format'. The Executable and Linking Format (ELF, formerly called Extensible Linking Format) is a common standard file format for executables, object code, shared libraries, and core dumps. First published in the System V Application Binary Interface specification, and later in the Tool Interface Standard, it was quickly accepted among different vendors of Unix systems. In 1999 it was chosen as the standard binary file format for Unix and Unix-like systems on x86 by the 86open project.

Detailed information for file extension O:

Primary association: Executable and Linkable Format

Identifying characters Hex: 7F 45 4C 46 , ASCII: ELF

Related links: Wikipedia ELF Page

Other applications associated with file type O:

Free Pascal (Object FIle for Linux or DOS Version) by FPC Development TeamFree Pascal (aka FPK Pascal) is a 32 or 64 bit (from 1.9.6) pascal compiler. It is available for different processors Intel x86, Amd64/x86 64 (from 1.9.6), PowerPC (from 1.9.2), Sparc (from 1.9.6) and Motorola 680x0 (1.0.x only). The following operating systems are supported Linux, FreeBSD, NetBSD, MacOSX/Darwin, MacOS classic, DOS, Win32, OS/2, BeOS, SunOS (Solaris), QNX and Classic Amiga.
Object FileTypically lower case on *nix systems.
Origin (C Compiled Program File) by OriginLab CorporationOrigin is scientific graphing and data analysis software.
UNIX/GCC (Object File)
Unknown Apple II File ((found on Golden Orchard Apple II CD Rom))
Xcode (Compiled Core C or Assembler Program) by Apple Inc.Xcode is a tool to help to create Mac OS X applications by assisting in the migration of code from other languages.

'Identifying characters' used on FILExt.com are
provided by Marco Pontello from his TrID database

Important: When encountering any file extension issues it is always recommended that you run a free scan for Windows registry errors.

Technical data

To view technical data on file-extension O click this link to expand/hide the additional area.

System Info for File Extension .O

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and information FILExt collected directly from user systems.

ProgramID: Shareaza.Collection
EXEFile: D:\Shareaza\Shareaza.exe %1

Program Name and MIME Type Info for File Extension .O

FILExt has been given permission to display a Program Name/MIME type database collected by Anthony R. Nemmer. Some of this data has already been included into the main FILExt database. Those entries which have not yet been incorporated are displayed below.

Program Name Mime Type application/x-object application/x-object-file; application/x-object

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Did you know

Everytime you install & uninstall software and modify system components your Windows registry is left fragmented with obsolete, corrupted and harmful files.

We recommend you run a free registry scan to identify the issues causing problems on your PC:

Free Scan