How to add Lotus Notes calendar to Outlook without any single error? Go and download the perfect Lotus Notes to Outlook Tool which knows about the complete and safe solution to add Lotus Notes calendar to Outlook application. All Windows editions are applicable to access this application as like- 7, 8, 10, 11 and all others. Make sure Lotus Notes application should be properly configured on your Windows machine, Outlook not required. Batch option available that helps to add unlimited NSF files to Outlook email client at once click. Also, here you will get preview feature that supports for getting brief view of NSF calendar entries. For converting Lotus Notes mailbox to Outlook, you can choose PST format and for Lotus Notes calendar conversion, you can choose ICS output file format.