If you are shifting from Lotus Notes to Outlook then you will need to convert your NSF files into PST files and this can be possible if either you have sound technical knowledge or by using a third party tool, it is wise to use a third party tool because manual method is tedious and risky also, I would like to suggest ATS NSF to PST converter which is designed with awesome feature like you can split your heavy PST files into small PST files, it supports all the updated version of MS Outlook from 2000, 2003, 2007, 2010, 2013 up to 2016, and the amazing thing is that you will be allowed to export you NSF database into Office 365 and it also support Live Exchange server.

Get more details:   http://www.bulkecommerce.com/store/convert-nsf-to-pst-software-154.html
 

There are many application are available in the internet for the conversion of lotus notes to outlook PST file format. There are two methods are available for the migration of NSF to PST, first method you can convert manually and second is use any third party software. Here I am discuss any third party application. There are many third party tools are available in the market todays but I would suggest you try to use NSF to PST  converter without pay any charges. So If you are interested to download NSF to PST Converter software from the google.

 

Check out this article: Manual tricks of NSF to PST to learn the popular conversion methods of NSF to PST i.e. - Export-Import and Setting up Co-existence. Both these methods simply import all the data from NSF file into PST file format without making any changes in the original NSF file. So no needs to worry about losing your NSF file data.

Hope this will help you.