Is there a way to import LOCAL FOLDERS of email on computer to eMClient?

I just yesterday downloaded eMClient email client.  Have been using Incredimail and finally had enough, constant problems pretty much daily.  On my Incredimail I have created numerous LOCAL FOLDERS that has a heading of “on computer” at the very top.  I am assuming they are somewhere in my computer?  I moved several important emails into these folders over the years.  Is there a way to import these LOCAL FOLDERS into my new eMClient?  THANKS!