Do you want to import Lotus Notes to Outlook, so here I suggest you get SysInspire NSF to PST Converter Software. This tool converts NSF files into multiple file formats such as NSF to PST, EML, EMLX, Office 365, Yahoo Mail, Gmail, Zimbra-tgz, vCard, etc. It has a demo version that allows users to convert 25 items from each folder of the NSF file for free. It has technical support all users get help by email or live chat. It has PST splitting users can split PST files into multiple small sizes.
