I want to suggest you eSoftTools NSF to PST Converter software because I personally used it and I know it’s better than other applications. It gives you multiple types of file formats to convert Lotus Notes NSF files such as HTML, Yahoo, Office 365, Gmail, ICS, MSG, Zimbra, MBOX, VCF, CSV, EML, and EMLX. It also gives you many types of name convention options. It also provides email filtering and bulk conversion option to convert NSF files safely. For more information visit the official website of eSoftTools.