.UPK File

The upk file extension is associated with the Unreal Engine 3 video gaming engine developed by Epic Games and used by various video games and game series, such as Gears of War and Mass Effect.

The upk files contain resource data used in the game, such as textures,texts, sounds etc.

A upk file extension is related to the Unreal Tournament 3 and other games based on Unreal Engine 3 engine. It is used for its game data package files.

How to open:

Use Unreal 3 Development Kit to open *.upk data package files.

How to convert:

As far as we know, this .upk file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.