Do you want to import an OST file into Office 365, here I suggest you get SysInspire OST to PST converter software? This tool has a demo version that can allow users to convert OST files into multiple file formats such as OST to PST, EML, EMLX, Office 365, HTML, Yahoo Mail, Gmail, etc. It supports all version of Windows OS. This tool has technical support all users can get help by email or live chat. It has PST splitting users can split PST files into multiple small sizes.
