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

{"sheet":"Simple","index":0,"n_rows":5,"n_cols":4,"rows_kept":5}
["Hello",null,"Hello"]
[null,"world!",null,"world!"]
[]
["Miscellaneous glyphs"]
["éàèùâêîôûëïüÿäöüç"]