Convert Multiple OST Files - Version 3.6 If your several OST file have become orphaned due to any reasons and you are unable to open them or to convert multiple OST files, but you have a big need to open then , do not worry you should try demo version of freeware Batch OST to PST Converter software to convert multiple OST files in free of cost. By using the demo version for OST converter, you can easily repair Outlook OST files in batch mode with many folders or single OST file and export them into MS Outlook (.pst) file, EML (RFC 822) Format and Outlook MSG file formats. But here is one condition, if you want to convert Exchange OST files to Outlook in batch, and then download the demonstration version. The demo version only able to export single OST file or multiple OST files. For totally convert multiple OST files you have to purchase full version of this Batch OST to PST Converter software. For more information you can visit: http://www.ostpst.biz/ost-convert-pst-free/