You have successfully created a list within Finder and are now looking to gather contacts from this target list.
Here is the step by step process along with a video tutorial at the bottom of the page to show you how:
Step 1
Navigate over to Explorer
Step 2
Build your query
Select the Table you wish to query
Choose the Dimensions you wish to display
Step 3
Pull in your list from Finder
Select the dropdown arrow to expand the Filters section
Select the dropdown arrow to expand the Lists section and then select from the list you choose to pull contacts from
Step 4
Run the query and Export. That easy!
Here is a quick 2 minute video that takes you through each of these steps: