.O File Overview

File Extension:	O
File Type Description:	Compiled Object File
File Type Developer:	Microsoft Corporation
Primary Associated Software:	Microsoft Visual Studio
Primary Software Developer:	Microsoft Corporation

Open your files with FileViewPro File Viewer

Download File Opener

Optional Offer for FileViewPro by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

Home File Types Developer Files O

What is File Extension O?

The O file extension is a Compiled Object File file developed originally by Microsoft Corporation for Microsoft Visual Studio. Commonly, Compiled Object File files are found on user computers from United States, and on PCs running the Windows 10 operating system. In most cases, these users are surfing the internet using the Google Chrome browser.

Associated Developers and Software

	Microsoft Visual Studio by Microsoft Corporation
	GNU Compiler Collection (GCC) by GNU Project

Top O User Languages

Top O File User Browsers

Desktop Friendly?

Mobile Friendly?

Top User Operating Systems


Windows 10	Windows 11	Windows 6	Windows 8.1

Associated Operating Systems

	Windows
	Mac
	Linux

Other File Types Related to O Files

Extension	File Type Developer	File Category	File Type Description
.GROUP	Microsoft Corporation	System Files	Windows Contacts Group File
.XNB	Microsoft Corporation	Game Files	XNA Game Studio Binary Package
.ODT	Oracle Corporation	Text Files	OpenDocument Text Document
.MUI	Myriad Software	Audio Files	Myriad User Instrument File
.FDR	Final Draft	Text Files	Final Draft Document
.SITEMAP	Microsoft Corporation	Web Files	ASP.NET Site Map File
.ANN	ABBYY	Data Files	Lingvo Dictionary Annotation File
.PL	Larry Wall	Developer Files	Perl Source Code
.M11	Microsoft Corporation	Data Files	Microsoft Money 2003 Data
.VSSETTINGS	Microsoft Corporation	Settings Files	Visual Studio Settings File