You need to try this vMail NSF to PST Converter program a shot. This utility quickly and accurately completes the conversion without changing the original data. The entire converting procedure is simplified by this tool, which improves the feature and interface for users. Furthermore, this program has a wealth of sophisticated features built right in. It can handle NSF files of any size, manage filters and folder mapping, allow users to examine newly added data items, and export NSF files into PST, EML, and MSG file formats. The first 30 data items from NSF to PST can be freely exported by using the FREE demo version, which is also available to users.
Know more info- https://www.vsoftware.org/nsf-to-pst-converter.html