For the fast OST to PST conversion try the third party tool, Shoviv OST to PST Converter. This tool recovers all corrupted OST files and converts into PST, Office 365, Live Exchange. Also, save OST data items into multiple file formats like HTML, EML, MSG, VCAL, VCard. Before converting OST to PST file preview facility is possible to the users. This tool efficiently supports all versions of MS Outlook 2000, 2003, 2007, 2010, 2013, 2016, 2019. Its free download versions permit us to convert & save 50 data items/folder.

For more details, visit:- Convert OST to PST