{"text_format":"3","workbook":"xls","n_sheets":3,"sheets":["Sheet1","Sheet2","Sheet3"],"read":"whole","date_system":"1900","formulas":"cached_only"}

{"sheet":"Sheet1","index":0,"n_rows":21,"n_cols":8,"rows_kept":21,"merged":[[20,0,23,2]],"flags":["formulas_cached_only"]}
["序号","班级","学号","姓名","学制","入学时间","购票区间(家庭)","身份证号"]
[null,null,"文本格式",null,"如“4”","如“2018/09/01”","只填到达站点，不写“市和站”字","文本格式"]
[null,"公共管理一班",null,null,"4","2018/09/01"," 北京"]
{"$rows_empty":17}
["备注：保存时不要用兼容模式，保存为xls为后缀名。"]

{"sheet":"Sheet2","index":1,"n_rows":0,"n_cols":0,"rows_kept":0,"flags":["formulas_cached_only"]}

{"sheet":"Sheet3","index":2,"n_rows":0,"n_cols":0,"rows_kept":0,"flags":["formulas_cached_only"]}