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

{"sheet":"Sheet1","index":0,"n_rows":6,"n_cols":4,"rows_kept":6,"flags":["formulas_cached_only"]}
[null,null,1,10]
[null,null,2,20]
[null,null,3,30]
[2,"<== Exception when parsed with POI"]
[6,"<== 0 when parsed with POI"]
[66,"<== Across two columns"]