PST to NSFConverter of SysInfoTools is the tool you have been looking for! This tool provides you the best way to perform conversion of PST files into NSF format. You can employ this tool with ease either your PST files are normal or corrupted. First it scans the selected file (if corrupted) in an intensive manner, and then recovers all the possible mailbox items from it. After that, it creates a new NSF file at user-defined location and saves all the data into it. And all this action is executed within a couple of minutes without causing a single bit of data loss or any type of modification.