{"text_format":"3","workbook":"xlsx","n_sheets":3,"sheets":["First","Main","Last"],"read":"whole","date_system":"1900"}

{"sheet":"First","index":0,"n_rows":1,"n_cols":1,"rows_kept":1}
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{"sheet":"Main","index":1,"n_rows":12,"n_cols":9,"rows_kept":12}
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["12345",2,{"$f":"B2+1","v":3},{"$f":"C2+2","v":5},6,null,"1","1","1"]
["23456",3,{"$f":"B3+1","v":4},{"$f":"C3+2","v":6},{"$f":"D3+1","v":7},null,"2","2","2"]
["34567",4,5,7,{"$f":"D4+1","v":8},null,"3","3","3"]
["45678",5,6,8,{"$f":"D5+1","v":9},null,"4","4","4"]
["56789",6,7,9,{"$f":"D6+1","v":10},null,"5","5","5"]
["67890",7,8,10,{"$f":"D7+1","v":11},null,"6","6","6"]
["78901",8,9,11,{"$f":"D8+1","v":12},null,"7","7","7"]
[]
[]
[{"$f":"\"1/2/3\"","v":"1/2/3"},null,{"$f":"SQRT(-1)","v":{"$error":"#NUM!"}}]
[{"$f":"\"4/5/6\"","v":"4/5/6"},null,{"$f":"LOG(0)","v":{"$error":"#NUM!"}}]

{"sheet":"Last","index":2,"n_rows":8,"n_cols":5,"rows_kept":8}
[null,1,{"$f":"B1+1","v":2},{"$f":"C1+2","v":4},{"$f":"D1+1","v":5}]
[null,2,{"$f":"B2+1","v":3},{"$f":"C2+2","v":5},6]
["1",3,{"$f":"B3+1","v":4},6,7]
[null,4,{"$f":"B4+1","v":5},7,8]
[null,5,{"$f":"B5+1","v":6},8,9]
[null,6,{"$f":"B6+1","v":7},9,10]
[null,7,{"$f":"B7+1","v":8},10,11]
[null,8,{"$f":"B8+1","v":9},11,12]