To convert OST to Outlook PST format? Then here I am suggesting you, try ZOOK OST to PST Converter .It is the best solution for users to convert OST to PST format along with their entire data items. It easily exports OST emails, contacts, notes, calendar, tasks, to-do list and much more into PST format. OST to PST Converter is also available as a free demo for users to check the valuable features of the tool. In the free trial of the utility, users are capable to perform the conversion of 25 items from OST file to PST format.