You can transform your mega OST file into many small PST files using this eSoftTools OST to PST converter software to convert OST to PST , according to your needs. The size of the OST file does not affect when exporting it to a PST file. It is not mandatory to install MS Outlook in order to use this tool. This setup is simple sufficient that both non-technical and technical users may use it.
Read More:- Convert OST to PST
Read More:- Convert OST to PST