Now that WLM is no longer available, I need to change email client for Windows 10 on another computer.

How can I transfer/import my WLM messages (thousands of messages in numerous Storage Folders) to Win10 Mail?

I've read other threads on this topic and NONE of them seem to have an answer -- they just mention uploading everything to "somewhere" &/or "repairing" WLM (which is not my problem!

I've also tried exporting from WLM to import to desktop Outlook; after carefully following directions on MS "Help" -- export seemed to go OK but then...nothing imported into Outlook.

Any suggestions?

I am NOT interested in using just web-based mail or keeping my mail on a cloud service.

I use POP for a reason and maintain local storage.

I want to be ready for the day when MS somehow remotely and w/o warning kills my WLM installation!

TIA for suggestions.

***Post moved by the moderator to the appropriate forum category.***