Step by step instructions on how to add Public Folder Calendar to Outlook. Purchase the license and activate it. Install Sync2 Cloud on a computer with Microsoft Outlook; Launch Sync2 Cloud and create a new synchronization profile; Choose public Folder source option; Choose which public folders you want to synchronize;. Feb 25, 2011 ยท Within your outlook, go to the bottom left corner and click on the Folder List button (figure A). This will bring up additional folders that you do not normally see (Figure B). If you expand public folders, you will see all of the public folders for your organization. These are all hosted on the Exchange server. If you would like to add a .... "/>Add public folder to outlook