使用例:上のテキストエリアに下記のCSVを貼ってみてください
管理番号,メールアドレス,日付 1,"yumechi0525+mail1@users.noreply.github.com.com","2017-06-01" 2,"yumechi0525+mail2@users.noreply.github.com.com","2017-06-02" 3,"yumechi0525+mail3@users.noreply.github.com.com","2017-06-03" 4,"yumechi0525+mail4@users.noreply.github.com.com","2017-06-04" 5,"yumechi0525+mail5@users.noreply.github.com.com","2017-06-05" 6,"yumechi0525+mail6@users.noreply.github.com.com","2017-06-06" 7,"yumechi0525+mail7@users.noreply.github.com.com","2017-06-07" 8,"yumechi0525+mail8@users.noreply.github.com.com","2017-06-08"
insert以外は実装中です…