{"text_format":"3","workbook":"xls","n_sheets":4,"sheets":["A","B","sample1","sample2"],"not_rendered":{"external_links":1,"defined_names":2},"read":"whole","date_system":"1900","formulas":"cached_only"}

{"sheet":"A","index":0,"n_rows":3,"n_cols":3,"rows_kept":3,"flags":["formulas_cached_only"]}
[]
["A=",1,0]
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{"sheet":"B","index":1,"n_rows":3,"n_cols":3,"rows_kept":3,"flags":["formulas_cached_only"]}
[]
["B=",2,3]
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{"sheet":"sample1","index":2,"n_rows":3,"n_cols":5,"rows_kept":3,"flags":["formulas_cached_only"]}
[]
["C=",3,3,null,"works"]
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{"sheet":"sample2","index":3,"n_rows":9,"n_cols":5,"rows_kept":9,"flags":["formulas_cached_only"]}
[]
["C=",3,3,4,"broken"]
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[]
["C=",3,3,3,"broken"]
[null,3]
[]
[]
[null,null,2]