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{"sheet":"first","index":0,"n_rows":3,"n_cols":4,"rows_kept":3,"cut":false,"hidden":false,"merged":[[0,0,0,8]]}
["Table 1"]
["A1","string",5,"2015-10-16"]
["A2","string2",6,40831.367870370370]

{"sheet":"second","index":1,"n_rows":2,"n_cols":2,"rows_kept":2,"cut":false,"hidden":false,"merged":[]}
[]
[null,"second"]

{"sheet":"third","index":2,"n_rows":2,"n_cols":2,"rows_kept":2,"cut":false,"hidden":false,"merged":[]}
[]
[null,"third"]

{"sheet":"fourth","index":3,"n_rows":2,"n_cols":2,"rows_kept":2,"cut":false,"hidden":false,"merged":[]}
[]
[null,"fourth"]