Yes, to do so, go to 'Contact list' make 'New list' name it something.
'Import' to the right of the screen. use our sample file. Fill it with all your data and import it with 'Choose File' then click 'Import'
You can also export same file type out again. if you don`t see all your fields check the pencil next to import button. here you can add/remove fields or move fields.