Two things: It is a file with a BKS2 extension that ends up in the Import folder, I misspoke on the tutorial, and will correct this this morning along with a couple of other things, thank you for catching this. When you download from the Bookshare website, you download .zip files. I'll correct/clarify this. Look for a new tutorial with the software release coming in a couple of days for fixing other problems. Second, Books found in the Import folder should now automatically unpack at start up regardless of whether autocatalog update is on or off. Jenny