PDS OST to PST Open Source Software helps you to recover outlook OST File or Convert outlook OST File into PST File with full attachments- Inbox, sent mail, deleted mail, outbox, draft, tasks, notes, appointment, contacts, calendars, journals in just few seconds. With the help of OST to PST Conversion Open Source Software you can Smoothly Convert OST File into PST/EML/MSG/etc. It works on OST version up to 2016