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

{"sheet":"Sheet1","index":0,"n_rows":5,"n_cols":15,"rows_kept":5,"merged":[[4,0,4,2]]}
["品名","公司名称","吨数","港口","船名","铁%","硅%","铝%","磷%","硫%","锰%","水%","价格","是否通关","提货时间"]
[]
[]
[]
["备注：指标不要填 %"]

{"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}