OST to PST File Converter - Version 3.3 OST to PST File Converter software helps email client for recovery of OST file and convert into PST, EML and MSG. Outlook user face problem with OST file because OST file cannot open in outlook then use this software to open these file in Outlook PST format. OST to PST File Converter software doing work as OST Recovery to recover OST files from Offline Exchange Server Database because OST corrupt due to following reason like Virus attacks, Exchange Server down, Database corruption, Accidental shutdowns, Bad Sectors, Software and hardware malfunction, Accidental deletion of user account, Rebuilding of Exchange information stores, OST file cannot synchronized with Exchange Server, When there is no capacity to backup heavy sized .OST files and other External or internal issue of network. This software in this situation scan Exchange Server database and recover corrupt OST file and convert into PST, EML and MSG. Email store in OST database with all objects which is important for email client or Outlook user, OST 2 PST Converter software recover this email smoothly and convert into new PST