Do you want to import OST file to Office 365, but you didn't find the best option, so here I suggest you to download SysInspire OST to PST Converter software. This tool converts OST file to PST, EML, EML, EMLX, Office 365, vCard, MBOX, etc. It has technical support, all users get help by email or live chat. It has a demo version that allows users to convert 25 items from each folder of OST for free. In this bulk conversion users convert OST file in bulk at the same time. It supports all versions of Windows OS.
Read More: Import OST file into Office 365
Read More: Import OST file into Office 365