You can safely convert DBX files into Outlook PST formats. There are many manual methods available on the internet but those are wearisome and hard to understand by novice users. Hereafter, it is suggested to use any good professional utility to convert Outlook Express DBX file into PST file formats. Unfortunately, users have no freedom to convert DBX to PST directly. You may have to follow a manual manner to convert data or can take help from a GainTools DBX to PST Converter Software.