Slightly disappointed that you couldn't xyzzy.

.zblorb is a format for old school text adventures. You need an interpreter which can open them. It should be possible to open .zblorb with any interpreter for Z-machines. Maybe you'll find one here: http://inform7.com/if/interpreters/

I second local_minimum. What kind of magic is it? :\

How would I play this? I don't know zblorb-format.