OST PST Conversion for Free - Version 5.5 We stick to our calculative approach to convert OST PST file by using OST PST conversion freeware. Now just stop wandering for OST PST conversion for free as we have found out a OST PST conversion freeware that gives a preview of OST file items.But he question arises why we need OST PST conversion for free of cost what happens to OST file that requires such a frequent conversion. If we search from the bottom them we will find the need arises due to misuse of Exchange server. If we don't keep Exchange server in proper way then sooner or later we might need OST PST conversion for free.As we all belong to a working peer group and cant invest so frequently on multiple tools so we seek for OST PST converter free of cost. However if we consider the real time picture then we will find OST PST conversion for free can convert OST PST file but if we opt for the given tool than it can convert OST to PST, EML and MSG file. So why to opt only for OST PST