Step 1:

• Go to Search and Segment Contacts that is found through the menu on the left, Address Book, Search and Segment Contacts.
  
  
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• Click Advanced search which is located directly to the right of basic search
  
  
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• Delete the fields on the right before adding the default fields you require, click add
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Step 2:

• Add a group on subscribers / contacts you need can be found on the bottom left menu Add Group Conditions
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• Once you have added the fields you need and deleted the default fields on the right,
• Click Fields to Display tab on the right and make sure that the subscriber contact fields are ticked and click search (first name, last name, email, etc...)
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Step 4:

• Once the search results have loaded, Tick the subscriber / Contacts you need
• Export selected to .csv
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• ,  or select all and Export all results to .CSV 
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• Name CSV file, Click enter.
• Page will refresh, on the left click refresh statistics - depending on the size of the subscriber list, take a few minutes before clicking update results statistics.
• On the right you will see pending status
  
  
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• Once that has changed to Complete
  
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• Click the little green download icon on the left, sits directly under refresh statistics.
• Once downloaded, open your export into MS Excel or Google Sheets.