Hey, if you need to export .eml files into Windows Outlook 2010 then you could pick a reliable method to do this conversion. I will let you know a simple solution, with the help of which you will be capable to complete this conversion very properly. Firstly you could convert your .eml file into PST format with the help of "FixVare EML to PST Converter". This software swiftly exports your all .eml files into PST format. This software is runnable on all Windows OS like Windows 11, 10,8,7, and so on. With the help of this software, you may export a single .eml file or .eml folder into PST format. After converting .eml files into PST format you may easily export them into Windows Outlook 2010. To know more about the software check its official website.