I am using Microsoft Office 2011 Suite on my MacBook Pro with Retina Display.
The user interfaces are super blur as shown below.
Am I missing out some patches or paddings or MS Office does not support retina display at all?
According to Microsoft, they've supported Retina Display since version 14.2.4. If you are using an older version of Office 2011, then you should upgrade.
Updating the Version itself which can be found here: http://www.microsoft.com/mac/downloads at the bottom of the website. Download and update it and it should go back to normal.