Import apple mail archives in outlook 2016 mac

Hello everyone,

I am currently running mac os x with the outlook for mac 2016 email client. In previous years I used apple mail and regularly archived all my emails monthly as they came in really heavy. Every month I used to get tons of emails, so my mailbox was full most of the times. So I had to take steps and archive the emails. I also had to clear up my email database. Now due to some official regulations, I have to switch my email client from apple mail to outlook mac 2016. Now I need to searching for some particular emails in the archived files. I am trying to import the archived files in outlook mac. But I cannot find the right procedure to do it as the one I am following does not seem to work. Please help me out of this.