OST till PST Converter - Version 3.7 Exchange Server is most advance e-mail communication system which allows exchange of internal and external e-mail modification. This OST till PST Converter application is also best to works on off-line mode where OST data file created. OST file stores entire information like email, calendars, contacts, task, to-do list, journal etc. However data file corruption makes OST data file inaccessible and gets entire information into un-readable format, so you have to try OST to PST converter to convert OST data. Software exchange OST into PST completely with contacts, journal, task, to-do list etc details too. Download FREE trial version of OST to PST application which allows checking out and viewing the complete information of OST items. To convert OST to PST completely you have to buy complete edition by investing $99 only.