If you want to export Calendar from Lotus Notes to Outlook, here I have a tool for you to download: SysInspire NSF to PSt converter tool. That can help you to convert NSF to PST, EML, EMLX, Office 365, HTML, etc. it has 13+ file formats for conversion. It has a feature of email filtration option users can filter their mails by using specific date. It can convert a corrupted NSF file to PST. It can run on any Windows OS and it also supports all versions of Lotus Notes. It has a demo version of software that can help you to convert 25 files from each folder. It has a demo version that can help users to get help by using mails or live chat.