原則 RubyデフォルトのCSVライブラリのみで動かす Rubyは2.2 サンプルCSVとして以下を用意 name,kana,pref "函館","はこだて","北海道" "五稜郭","ごりょうかく","北海道" "桔梗","ききょう","北海道" "大中山","おおなかやま","北海道" "七飯","ななえ","北海道" "渡島大野","おしまおおの","北海道" "仁山","にやま","北海道" "大沼","おおぬま","北海道" "大沼公園","おおぬまこうえん","北海道" "赤井川","あかいがわ","北海道" 読み込み readを使うと二次元配列で読込される p CSV.read("data.csv") [["name", "kana", "pref"], ["函館", "はこだて", "北海道"], ["五稜郭", "ごりょうかく", "北海道"], ["桔梗", "ききょう