Xpk extension is associated with WWE model file. You have chance to open xpk files with WWE wrestling game.
It is a model file which consists the images of WWE wrestling games characters. You may change the games character views by changing xpk files.
Some of the xpk files in game like these:
What to use xpk
WWE wrestling games
which page related to xpk file
xpk Related Searches
You can check related links about xpk fileextension.