Extracting your member table enables you to view and analyze your data. And Join It makes it easy :)
Starting at your member table...
Navigate to the bottom of the screen and click "Export Members"
Select the specific member data fields you are looking to extract, e.g. specific membership types, email, expiration date, etc.
Once you have the fields you need, click the green "Export Report" button -- this will initiate a download of your member data which will be available in your browser within a few moments
Leverage these extracts as necessary to aid in any deep analysis you are looking to conduct.