If you want to save EML files into Outlook PST format along with attachments? Then, I would like to recommend you best utility, which is CubexSoft EML to PST Converter. It can transfer multiple EML files into PST format without any restriction. Also, the software is compatible with various EML-based email clients like Mozilla Thunderbird, Outlook Express, Dream Mail, Windows Live Mail, and many more. Additionally, you can download this tool on all Windows versions 11, 10, 8.1, 8, 7, XP, Vista, etc., and it is also compatible with macOS versions like Monterey, Catalina, Mojave, Big Sur, High Sierra, and many more.