Your search - opi=89978449 %2Fsearch%3Fq%3Dq%253Dhttps%3A%2F%2Fstackoverflow.com%2Fquestions%2F31179452%2Fwhat-exactly-is-in-a-o-a-so-file%26sca_esv%3D6875faee4ba80aec%26sca_upv%3D1%26tbm%3Dshop%26source%3Dlnms%26ved%3D1t%3A200713%26ictx%3D111 - did not match any documents.
Suggestions:
Your search - opi=89978449 %2Fsearch%3Fq%3Dq%253Dhttps%3A%2F%2Fstackoverflow.com%2Fquestions%2F31179452%2Fwhat-exactly-is-in-a-o-a-so-file%26sca_esv%3D6875faee4ba80aec%26sca_upv%3D1%26tbm%3Dshop%26source%3Dlnms%26ved%3D1t%3A200713%26ictx%3D111 - did not match any documents.
Suggestions:
Make sure all words are spelled correctly.
Try different keywords.
Try more general keywords.