Q: import Microsoft Outlook contact lists  and calendar to my iMac?

You can use Migration Assistant. Please read Apple's About MS Windows Migration Assistant instructions. Read them carefully!!!! If you have already booted the iMac for the first time you missed your first opportunity, this is addressed in Setup Assistant however you do have a second chance. Note: When you use MA it creates a second user account, this is where all your PC data will go. To learn how to move it to your primary account please read Pondini's Transferring files from one User Account to another. guide.