July 29, 2019 2:33 PM EDT
Well your instruction will depend on the certain type of software which you'll choose. Usually there's a need of installing Outlook on your machine for this, you can also use special conversion programs like for example Kernel PST Converter, SysTools Mail Converter, Total Mail Converter and so on. However installing all this soft on your device isn't always convinient, besides some of these programs are rather expensive too. Keep in mind that some of them be weak in case of security for your files too.That's why it's recommended to use as an alternative online email conversion, the safest and free tools for this are for example Email Migration Service https://convertemail.online/ , PST to EML Converter and Softstella.