{"text_format":"3","workbook":"xlsx","n_sheets":3,"sheets":["Лист1","Лист2","Лист3"],"read":"whole","date_system":"1900"}

{"sheet":"Лист1","index":0,"n_rows":6,"n_cols":4,"rows_kept":6}
["Фамилия","Класс","балл","статус"]
["Шакирова",5,17,"участник"]
["Аксакова",6,16,"призер"]
["Терентьев",6,8,"участник"]
["Долгунова",7,6,"участник"]
["Шакирова",8,20,"призер"]

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{"sheet":"Лист3","index":2,"n_rows":0,"n_cols":0,"rows_kept":0}