Use safe and secure method to restoration OST file and the tool name is PDS OST Recovery Tool that retrieve all corrupted OST file data and also gives some tips that how to prevent OST file data from harmful error and gave best way to converting OST file to PST file with emails attachment properties: - contacts, Calendar items, Notes, Scheduled tasks, appointments, journals, drafts etc. (To, Cc, Bcc, Subject, and Date & Time into outlook). OST to PST recovery tool provides many advance features like message filtering and naming convention option. By using message filtering option recover two dates messages “start date” to “last date” and restore all OST file emails according to (- subject, date+ subject, from, date, subject, subject +date and subject+ date+ from etc).