Hi, this is really nice:
If you two-column spread-sheet just go on the little down-arrow next to share and select "Publish as a Webpage". As format specify TXT (Plain Text). Use the resulting link, shorten it using e.g. tiny.cc and enter it as a private deck code.
Voila!
Google docs can also keep the exported version updated, so you only need to enter the link once!
Great App, next I'm gonna try using mp3 flashcards