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

{"sheet":"Sheet1","index":0,"n_rows":8,"n_cols":5,"rows_kept":8}
["Stages","Stage I","Stage II","Stage III","Stage IV"]
["Age (mean-stdev)","44.8-12.8","64.5-11.4","64.8-11.1","65.5-9.9"]
["Age at onset (mean-stdev)","38.8-13","58-11.7","59.2-10.8","60.9-10.2"]
["Sex (female-male)%","76.1-23.9","76.9-23.1","71.7-28.3","58.2-41.8"]
["White%",64.9,59.6,76.2,60]
["Asian%",12.3,9.6,6.2,9.1]
["Black or african-american%",3.9,1.9,7,9.1]
["not-reported%",18.6,28.8,11.6,21.8]

{"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}