To easily convert your data from EMLX to PST you can use the software tools. Recently I read a blog that provides all the information regarding the transfer of EMLX to PSTfile format.
This tool transfer the EMLX files to PST file format as well as various other file formats. Software tool is recommended by various professional users because of their salient features. This tool is 100% reliable and one of the best utility to export the EMLX files to PST file formats.