Free OST to PST Converter Software recovers the data and converts Outlook offline OST files to PST Outlook file. This tool Restores all the meta Properties like To, Cc, Bcc, Time, Date, subject, all attachment, and etc. OST to PST converter to Convert OST items into different file types such as PST, MBOX, EML, EMLX, MSG, HTML, PDF, vCard, and vCal, etc.