With the help of CubexSoft OST to PST Converter Tool, you can easily convert multiple OST file to PST format including all emails, contacts, calendars, and other items. It successfully import OST file to PST format without Outlook. The advanced tool can easily convert OST file to Multiple files formats such as RTF, PDF, PST, MSG, EML, and many more file formats. It is fully capable to supports all the Windows OS and Mac OS.