{"text_format":"1","workbook":"xlsx","n_sheets":2,"sheets":["Checking Aids","Information"],"not_rendered":{"charts":0,"images":1,"macros":0,"external_links":0,"defined_names":1,"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":"Checking Aids","index":0,"n_rows":7,"n_cols":3,"rows_kept":7,"cut":false,"hidden":false,"merged":[[0,0,0,2],[14,0,14,1],[15,0,15,1],[16,0,16,1],[17,0,17,1],[6,0,6,1],[7,0,7,1],[8,0,8,1],[9,0,9,1],[10,0,10,1],[11,0,11,1],[12,0,12,1],[13,0,13,1],[22,0,22,1],[23,0,23,1],[25,0,25,1],[18,0,18,1],[19,0,19,1],[20,0,20,1],[21,0,21,1],[24,0,24,1],[31,0,31,1],[32,0,32,1],[33,0,33,1],[26,0,26,1],[27,0,27,1],[28,0,28,1],[29,0,29,1],[30,0,30,1]]}
["Checking Aids"]
[]
["Product"]
[]
["Reference"]
[]
["Checking aids",null,"Dimension measured"]

{"sheet":"Information","index":1,"n_rows":2,"n_cols":5,"rows_kept":2,"cut":false,"hidden":false,"merged":[]}
["Version #","Date","Author","Modification","Purpose"]
[1,"2020-02-01","Xin Zhao","New Release"]