{"text_format":"3","workbook":"xlsx","n_sheets":3,"sheets":["Visible","Hidden","VeryHidden"],"read":"whole","date_system":"1900"}

{"sheet":"Visible","index":0,"n_rows":2,"n_cols":7,"rows_kept":2}
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[{"$f":"CODE(A1)","v":118},{"$f":"CODE(B1)","v":105},{"$f":"CODE(C1)","v":115},{"$f":"CODE(D1)","v":105},{"$f":"CODE(E1)","v":98},{"$f":"CODE(F1)","v":108},{"$f":"CODE(G1)","v":101}]

{"sheet":"Hidden","index":1,"n_rows":2,"n_cols":6,"rows_kept":2,"hidden":true}
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[{"$f":"CODE(A1)","v":72},{"$f":"CODE(B1)","v":105},100,100,101,110]

{"sheet":"VeryHidden","index":2,"n_rows":2,"n_cols":10,"rows_kept":2,"hidden":true}
["V","e","r","y","H","i","d","d","e","n"]
[{"$f":"CODE(A1)","v":86},{"$f":"CODE(B1)","v":101},114,121,72,105,100,100,101,110]