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

{"sheet":"Sheet1","index":0,"n_rows":7,"n_cols":6,"rows_kept":7,"flags":["formulas_cached_only"]}
["Range begin","Range","Range end","Actual","Expected","Comments"]
[{"$nulls":3},3,3]
[1,null,1,1,1]
[1,null,null,2,2]
[true,false,null,1,1,"boolean false does not count as blank"]
["foxtrot","unicorn","charlie",0,0]
["2009-12-12"," ",null,1,1,"second cell contains a space character"]