Shake hands with OST Extractor application to extract OST file to PST file by keeping secure all parts of OST email messages. It’s a OST Email Extractor tool which can extract Exchange OST to PST format. Software works well with all Windows OS and does not require Outlook or Exchange connectivity. Users can use this tool to extract OST file to PST, Office 365, MSG and EML file format. Installation of Outlook or Exchange connectivity is not required in order to extract OST file to PST format.