PDS switch OST PST program is the best tool to switch OST to Outlook. With the help of our OST to PST converter tool OST users can efficiently transfer data from OST to PST. OST to PST migration tool safely migrate OST to PST from all such exchange OST versions 5.0, 5.5, 2000, 2003, 2007 and 2010 /2013. PDS OST importer tool efficiently import OST to Outlook, without affecting its internal coding- TXT, RTF and HTML etc.