Ifyou nothing find something like suitable and reliable product to import OST toExchange Online then use MailsDaddy OST to Office 365 Migration Tool. Thesoftware does not have any record of OST data deletion or damage during theconversion process. The program is suitable with Windows OS and executes thesingle or multiple OST file to Office 365 account securely without any disturbance.
Know more: Convert OST to Office 365