Are you looking for a solution to move Outlook OST data file to PST? If yes is your answer, then you should try professional OST to PST Tool. It is one of the amazing tools that helps you to convert multiple Outlook offline .ost files to PST file format with all emails, contacts, calendars, tasks, journals, and etc. There is no file size limitations, you can migrate number of OST files without any error. MS Outlook installation is not required for the conversion process. It has a very simple GUI, anyone can easily handle and works with this software without any technical expert’s help. It allows you to batch move Outlook OST data file to PST file format without any data loss. It was compatible with all the versions of MS Outlook and Windows OS including Windows 11.