Xanderwood is a tree that has taken the soul of a lumberjack that attempted to cut him down. That lumberjacks name was Xander. I think I solved it.
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Actually, that is an inaccurate theory. How would he be able to talk? I think that it is the other way around, in which that the tree was a dead tree, and it had a ghost. As Xander, the Lumberjack, was cutting it down to make space for a new tree, the ghost tree entered Xander's body and possessed him, creating who we now know as Xanderwood.