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

{"sheet":"Sheet1","index":0,"n_rows":4,"n_cols":6,"rows_kept":4,"merged":[[1,0,3,0],[1,5,2,5]]}
["标包号","名称","材质","单位","数量","备注"]
[1,"废定径辊","球墨铸铁","吨",200,"各轧管厂"]
[null,"废连轧辊","球墨铸铁","吨",200]
[null,"废导盘环","球墨铸铁","吨",60,340]

{"sheet":"Sheet2","index":1,"n_rows":0,"n_cols":0,"rows_kept":0}

{"sheet":"Sheet3","index":2,"n_rows":0,"n_cols":0,"rows_kept":0}