Outlook 2010 Offline Address Book This document provides a step-by-step set of instructions on how to download the Offline Address Book in Outlook 2010. Click the File Tab, Click on Account Settings, and then click Download Address Book. In the Offline Address Book dialog box, make sure that the Download changes since last Send/Receive check box is checked then click OK. Your Outlook Offline Address Book is now up-to-date.