If you want to import an OST file into Outlook.com then you can use the best software that is master to import an OST file that is SysInspire OST to PST Converter tool. This software can be the software if you want to import your OST file into various formats that are EML, EMLX, CSV, VCF, MSG, Office 365, HTML, Zimbra Desktop, IMAP Account, PST, Gmail and many more. This software cannot make changes in the data of the OST file like Contact, Calendar, photos, Background etc. you can take a free trial of this software in which you can convert 25 items from each of the OST file and folder.

Know More :-Import an OST File into Outlook.com.