restoring contacts in Windows Live Mail

Windows 10, ver 1909, build 183636. 1198; WLM 2012
I lost the use of my laptop and purchased a new one. My original harddrive is functional, and I used it as an external drive to transfer all my documents and files to the new one. I reinstalled that apps that i wanted to keep, including whatever latest version of Windows Live Mail I could find. Now, I want to restore my saved emails in the distinct folders I created for them from the old HDD to the new one, including my Contacts list. Once upon a time, I could copy and paste all those files from one drive to another, but I don't recall where those files are located or even if that works any more. Exporting and importing never worked well for me, but I may have to pursue that method.
Thank you for any help.