Looking a solution for OST file open in Outlook 2013? If yes, then choose the best solution â€“ OST to PST Software to successfully OST file open in Outlook 2013. It is able to convert your OST file in PST format, which is supportable with all Microsoft Outlook editions. So you can easily open your output PST file in Outlook 2013 without any issue. Without Outlook installation, you can OST file open in Outlook 2013 by using this OST to PST software. To know how to achieve the same, you can firstly use its trial edition that is compatible to open 25 items from every OST file to PST file without charges. For OST file open in Outlook 2013 PST file in a bulk, you need to go for a license key of the tool.