{"text_format":"3","workbook":"xlsx","n_sheets":1,"sheets":["読書リスト"],"not_rendered":{"defined_names":2},"read":"whole","date_system":"1900"}

{"sheet":"読書リスト","index":0,"n_rows":4,"n_cols":7,"rows_kept":4,"merged":[[0,1,0,6]]}
[null,"読書リスト"]
[]
[null,"読み終えた?","題名","著者","ジャンル","メモ","読んだ日付"]
[null,"a"]