You can smoothly try OST to Office 365 converter from vartika software. This OST to Office 365 migration tool recover the information from OST to Office 365 account with transfer attachments, emails, mails and etc. in office 365 accounts. Through the assistance of OST to Office 365 Converter tool which easily convert files from OST to Office 365 account, PST Outlook , vCard, vCal, Gmail, live Exchange sever, zimbra, MBOX, EML, EMLX, NSF, HTML, PDF, OLM, and etc..
OST to Office 365 converter