class ActiveAdmin::ResourceDSL

end
column :name
csv :separator => ";", :options => { :force_quotes => true } do

end
column("Author") { |post| post.author.full_name }
column :name
csv do

For example:

Configure the CSV format

def csv(options={}, &block)
  config.csv_builder = CSVBuilder.new(options, &block)
end