ATS OST to PST Migration tool does not change the structure of OST file while you convert OST data into PST data file. This utility supports all the version of Exchange Server like 5.0, 5.5, 2000, 2003, 2007, 2010, 2013, and 2019. This application is the great solution which easily extract all the items of OST mailbox like emails, task, draft, notes, sent item, delete item, attachment etc. into Office365 and Live Exchange Server which is a cloud-based application.Before the conversion process, it displays the preview of the recovered mailbox item.