{"text_format":"3","workbook":"xlsx","n_sheets":1,"sheets":["sheet1"],"read":"whole","date_system":"1900"}

{"sheet":"sheet1","index":0,"n_rows":11,"n_cols":2,"rows_kept":11}
["date","number"]
["2017-10-10",1]
["2017-10-11",2]
["2017-10-12",3]
["2017-10-13",4]
["2017-10-14",5]
["2017-10-15",6]
["2017-10-16",7]
["2017-10-17",8]
["2017-10-18",9]
["2017-10-19",10]