Windows Mail emails

Some while ago I converted Windows Live Mail (running under Windows 7 Professional) to the old Windows Mail as shown in another section of this Forum. A couple of days ago I lost a number (not all) of my email folders but have found these in my weekly back-up and copied them to another drive. However, Windows Mail (modified) will not let me import these as the import options don't show a Windows Mail format. If I open an actual email on the other drive I can file the item correctly using the 'Move to' option. However, I have thousand of emails which need to be moved and this would take me weeks ! Can anyone tell me how to move these 'in bulk' ? I have created new folders and these are reflected in C:\Users\Me\AppData\Local\Microsoft\Windows Mail\Local Folders (1)

Might I suggest that you go back to that 'other section' to post your question. That one is specific to Windows Mail, this one is not.

The 'other section' I referred to is a tutorial and I cannot find a forum specific to Windows Mail - would be delighted to move the question if someone can tell me to where. Thanks.