Okay well I figured out a partial answer. I could not find any help and here I am 11:30pm and I got somewhere. No one seems to know, which is really surprising to me, but here is the answer.
you create your account in Mail.app. Then you create a Mailbox on the left hand menu called it Xfer, (create by right clicking in the left hand panel and select for Mac.) Then you open the place where you backed up in one finder and in another finder got to Home>Mail>Mailboxes, and you’ll see your Xfer.mbox there, Take the back up mail files and drag them into the Xfer.mbox and then go to Mail.app and select your Xfer Folder and then go to Mailbox>Rebuild and the files will show, (note: Now all of them will be there for some odd reason, the only ones that will transfer are the .smix files. If you want to trasnfer the partial.emix files you need to remove the partial and make it just a .emix. After you Rebuild, just Drag it to the Account you want them and that is it. I wish I could have gotten some help, and hopefully there is a better way, but for now I will say I founded this way, and cant wait to help others in need.