If you just want to download a specific segment of your contact list without having to download the full list and then segment offline, then that's easy to do. A great example of this is that you may have contacts tagged "vip" and you only want to download them.
1. Select Contacts in the top menu and then click on the Export CSV button.
2. Enter the tag or tags that you'd like to filter the list on and click the Export CSV button under the tag list field.
3. Your list will be generated. View in your spreadsheet software.