Firstly, download and install NSF to PST Converter on your system.
Go to the Browse button and add Lotus Notes extracted NSF files.
Once NSF file is scanned, get a complete view of NSF. Also, select the items to export NSF file.
Select ‘Convert to PST’ in Export Type.
Now, choose the Browse button to select a destination path to save the PST file.
At last, hit the Convert Now button to start the conversion process.
(Note: It is compulsory to install Lotus Notes in the system to export NSF files)