Possible Duplicate:
How can I get a overview and manage the default applications for file types?
How to change file associations in Android? I have video files opening in one player but I want another.
Please don't propose
Settings => Manage Applications => The app you want to remove as default => clear default.
since I don't know the name of the player application name which is currently associated with video files.
I need file-type-centric solution.
