File Extension Library

.O File Extension

  • Category: Developer Files

What are .O files and how to open them?

Can't open .O file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .O file.

What is a .O file extension?

.O file extension has been classified as Developer Files.

.O is Compiled Object File

Object file produced by a C compiler; often created instead of a program file during the development process.

List of all softwares that can open the Compiled Object File
GNU Compiler Collection (GCC)
GNU Compiler Collection (GCC)

How to fix problems with .O files

  1. You need to update the application that you normally use to open .O files. Only the latest version of the software supports the current .O file format
  2. You need to check the .O file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)