OST to PST converter provides best solution to import Outlook data file OST in outlook PST for Mac OS. The tool convert multiple OST file or folders at one time. Tool also supports to convert OST to PST file extracted from Outlook 2021, 2019, 2016, 2013, 2010, etc. There is no limitation to import OST files into Outlook PST format. It is user friendly tool for all Mac user. The tool provides simplest and easiest technique to convert OST file into PST format with complete data such as contacts, email, attachment, calendars, tasks, etc. without data loss.