The OST PST File Conversion Tool allows you to re-access on OST file to recover data of OST file and convert OST to PST file with fully security. By OST file to PST Converter Software you can export OST to PST files and other formats such as- EML, MSG, HTML and PST. The OST PST File Conversion Smoothly Convert OST to PST Files. It asks you to Split large PST file into Small PST file from 1 GB to 5 GB with fully security.