{"text_format":"1","workbook":"xlsx","n_sheets":2,"sheets":["Input","Output"],"not_rendered":{"charts":0,"images":0,"macros":1,"external_links":0,"defined_names":0,"comments":0,"pivot_tables":0},"unopened":[],"bounds":{"document_bytes":16777216,"sheet_cells":100000,"rows_first":2000,"rows_last":500,"rows_between":2000,"halvings":0,"cell_chars":16384,"cell_head_chars":4096},"cells_cut":0,"cells_raw":0,"read":"whole","date_system":"1900"}

{"sheet":"Input","index":0,"n_rows":14,"n_cols":2,"rows_kept":14,"cut":false,"hidden":false,"merged":[[0,0,3,0],[5,0,8,0],[10,0,13,0]]}
["a","a"]
[null,"b"]
[null,"c"]
[null,"d"]
[]
["b","a"]
[null,"b"]
[null,"c"]
[null,"d"]
[]
["c","a"]
[null,"b"]
[null,"c"]
[null,"d"]

{"sheet":"Output","index":1,"n_rows":14,"n_cols":2,"rows_kept":14,"cut":false,"hidden":false,"merged":[]}
["a","a"]
["a","b"]
["a","c"]
["a","d"]
[]
["b","a"]
["b","b"]
["b","c"]
["b","d"]
[]
["c","a"]
["c","b"]
["c","c"]
["c","d"]