You have to download and install an interpreter as shown in ifwiki, depending on your device. It is the same as you will do to see a doc, png or any other file.
Not really, because a doc I know is a document. Blorb is something sort-of zipped up and I don't know what that something is. Turns out on closer look it's an ADRIFT file. And by 8-bit legend Larry Horsfield, no less!
