If you want to convert EMLX files to PST format then you can install FixVare EMLX  converter software. This is a reliable EMLX to PST converter. Open the software and use the 'Find' or 'Browse' option to locate and select the EMLX files you wish to convert.​ After loading the files, you can apply filters like sender, date range, or subject if needed.​ Set PST as the desired output format and specify the location to save the converted file.​Then Click Save or Convert to start the conversion process. Once completed, you can import the PST file into Microsoft Outlook.