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The obb file extension is related to the Google Android operating system for smart phones and tablets based on Linux.The .obb file contains data that are shared between multiple applications installed in device.he obb file extension is related to the Google Android operating system for smart phones and tablets based on Linux.
Asker's rating. 1  A VOB file (Video Object) is a container format contained in DVD-Video media. This is the format in which DVD information is stored. 2  A .vob file is a container file used as the standard format for DVDs. If you want to watch the movie on a DVD player, all you have to do is burn the files onto a disc. 3  VOB stands for DVD Video Object.