The AutoRecover info files are not available for your use. You'll need to
use your own backup file. The AutoRecover info files are for PowerPoint's
use. In the event that it has an internal problem and must shut down it can
offer you the latest couple of auto recover points.
By the way, if you aren't in the habit of saving backup copies of your
presentations, there is a really neat free add-in called Sequential Save,
written by Shyam Pillai. You can get it at http://www.mvps.org/skp/seqsave.htm