How to Convert .PST to .NSF - Version 6.0 How to convert .PST to .NSF or How to migrate Outlook to Lotus Notes without difficulty? In the mentioned situation SysTools is delighted for being able to provide you a solution in the form of Migrate PST to NSF software. The PST to NSF tool ensures 100% result for the Outlook to Notes conversion process. For those who think that safety is above everything else, may choose Lotus Notes over Outlook due to the issue of security. Many users using Outlook think of Outlook to Notes transfer because of the security provided by Notes. Sometimes, people switch from Outlook to Lotus Notes out of need also like when they change job and when they have different email programs at workplace and home. Another strong reason for such migration is the file size limit of older Outlook versions which is 2 GB beyond which corruption happens and user cannot access the email files. To save themselves from this situation, many users convert Outlook (.pst) files to Notes (.nsf) files. PST to NSF Conversion tool quickly performs procedure of MS Outlook mailbox conversion with all of its email folders (Inbox, Sent Items,