.OPK

.OPK file extension

This is the basic program to work with .OPK extension

Origin

OriginOrigin Module Pack File

Origin is a free digital gaming service for Windows users. With this program you can explore new games and stay connected with the Origin community. With the cloud storage, you can sign in to your EA account to play your favorite games from any Origin-equipped PC. Also, you can pick up and continue playing right from where you left off... (more)

The program works with the following extensions: ogm, opj, ogw, opk, opx and ogg

.OPK extension is also supported by the following programs:

OriginPro

OriginProOrigin Module Pack File

It is an application designed for data analysis and publication graphing.
Continental Airlines Timetable

Continental Airlines TimetableContinental Airlines Itinerary