The easiest way is to do it through software; this will also do the work quickly. Personally, I use Softaken's MSG converter. It converts many MSG files to PST at once; it also supports all versions of Outlook 2021, 2019, and 2016. It is easy to use and runs without any problem in both old and new versions of Windows OS. It also gives the option to convert MSG files to other file formats like PST, VCF, HTML, etc. This is very useful for me.
Visit: https://www.softakensoftware.com/msg/
The easiest way is to do it through software; this will also do the work quickly. Personally, I use Softaken's MSG converter. It converts many MSG files to PST at once; it also supports all versions of Outlook 2021, 2019, and 2016. It is easy to use and runs without any problem in both old and new versions of Windows OS. It also gives the option to convert MSG files to other file formats like PST, VCF, HTML, etc. This is very useful for me.
Visit: https://www.softakensoftware.com/msg/