Open .O file Extension

File Type : Object File

Compatible with: (Mac OSX 7, 8, 9, 10, 11, 12)

Searching for a program to open .O files?
The error "There is no application set to open the document." is a common problem faced by millions of Mac users daily. This happens either because the required app to open that file does not exist or there might be some malicious apps tempering your Mac
We recommend that you run a scan on your Mac to check for potential malware threats.


ExtensionSmallImg What is .O file?

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

Recommended Software Programs to open .O file

Apple Mac OS X:
  • GNU Compiler Collection (GCC)
  • GNU Compiler Collection (GCC)