For bulk import OST to Outlook Web App at once, users can install the OST to Office 365 Migration Tool which provide the proper working guide to perform entire process. OST to Office 365 is most trustworthy and accurate solution for users to import OST to Outlook Web App including attachments, emails, contacts, calendars, briefcase and so on. Date filters available for those users who want to perform selective OST file migration into Outlook Web App. The entire edition of software comes very simpler interface which can easily use by all type of users. Only the basic knowledge of computer required to perform the process to import OST to Outlook Web App. Moreover, after performing the process, it facilitate with save report option that will provide the complete report of conversion. Go and freely use the OST to O365 Tool free demo edition can be accessible on all Windows editions.