I still remember that situation where my management for thinking to migrate the entire database from Lotus Notes to Outlook. So I researched about it and found a lot of methods to perform this task. Some options seem to be a little bit risky as the data can corrupt which the commands go wrong or there is a mistake while writing the scripts. So thought searched for some tools which cannot modify the core database. Meanwhile, I came to know about eSoftTools free NSF to PST Converter Software which was a tool to migrate as well as recover data from Lotus Notes to Outlook. I found it very useful as it gave me various choices for migration such as Outlook PST, EML, HTML, MBOX and many. The structure of the files and folders remains the same throughout the process. And it does not have any limitation of size or variant of NSF files for migration. You can also try it yourself as there is a free demo version available on their website.