Unwanted blocks and linetypes

I know this is beating a dead horse.  I have a drawing that have blocks in them I cant find inserted.  I cant purge them or the linetypes they have.  Freaking annoying.  How do I strip them out if I cant find them to explode them?

I have attached the file if anyone is bored.

Image may be NSFW.
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Clik here to view.Image may be NSFW.
Clik here to view.Image may be NSFW.
Clik here to view.Image may be NSFW.
Clik here to view.

Image may be NSFW.
Clik here to view.