OST Extractor - Version 5.5 The importance and pivotal role of OST files in Exchange working environment to allow the capability of work offline mode. OST file is best to perform whole Outlook operations without connecting with server. These all offline updates and changes automatic synchronize with Exchange server whenever you connect with it. But sometime certain chances of server corruptions makes OST file corrupt & damage. So, to extract OST file data you need to try OST extractor tool. This software effortlessly fix OST file corruption as well extract OST file to PST, EML and MSG file formats. OST extractor tool can exact OST data from start to end along the details of email, calendars, contacts, journal, to-do list etc. Try FREEWARE OST extractor tool to get preview of whole corrupt Exchange OST data. After using free demo edition if you need to extract OST file to PST completely then proceed to purchase full edition by investing $99 only.