{"text_format":"3","workbook":"xls","n_sheets":3,"sheets":["Sheet1","Sheet2","Sheet3"],"not_rendered":{"external_links":1},"read":"whole","date_system":"1900","formulas":"cached_only"}

{"sheet":"Sheet1","index":0,"n_rows":4,"n_cols":6,"rows_kept":4,"flags":["formulas_cached_only"]}
["Type","Unit","k","b","Digit","Remark"]
["  ","  "]
["该行以下请删除，仅为说明"]
["所属的单位类别","单位名称，通常英文","相对于基准单位的系数K","相对于基准单位的偏移b","显示的小数位数","单位描述或说明"]

{"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"]}