{"text_format":"3","workbook":"xls","n_sheets":1,"sheets":["Folha1"],"not_rendered":{"images":1,"macros":1},"read":"whole","date_system":"1900","formulas":"cached_only"}

{"sheet":"Folha1","index":0,"n_rows":30,"n_cols":11,"rows_kept":30,"merged":[[6,10,10,12]],"flags":["formulas_cached_only"]}
[]
[]
[]
[]
[]
[]
[{"$nulls":10},"Click in the box"]
{"$rows_empty":22}
[null,"click on the boxes"]