{"text_format":"2","workbook":"xls","n_sheets":3,"sheets":["data","Sheet2","Sheet3"],"not_rendered":{"charts":0,"images":0,"macros":0,"external_links":1,"defined_names":0,"comments":0,"pivot_tables":0},"unopened":[],"bounds":{"document_bytes":16777216,"sheet_cells":100000,"run_cost":"one","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":"1904","formulas":"cached_only"}

{"sheet":"data","index":0,"n_rows":33,"n_cols":10,"rows_kept":33,"cut":false,"hidden":false,"merged":[],"flags":["formulas_cached_only"]}
["Depth (cm)","Pb (ppm)  Core 1","Core 1 Error","Pb (ppm) Core 2","Core 2 Error","Pb (ppm) Core 3","Core 3 Error",null,"Pb (ppm) Demo","Demo Error"]
[0,62,7,25,6,60,5,null,58,5]
[2,70,4,22,3,57,4,null,61,4]
[4,66,3,37,5,63,3,null,63,3]
[6,74,5,null,7,59,4,null,57,4]
[8,71,4,34,4,61,7,null,61,7]
[10,82,6,null,null,73,5]
[12,{"$nulls":4},70,6,null,70,6]
[14,80,5,null,null,82,4,null,81,4]
[16,null,null,150,25,80,5,null,79,5]
[18,null,null,321,31]
[20,{"$nulls":4},100,33]
[22,{"$nulls":4},400,41,null,105,33]
[24,{"$nulls":4},250,32,null,415,41]
[26,492,33,null,null,60,26,null,225,32]
[28,578,42,null,null,40,10,null,60,26]
[30,115,30,null,null,3,5,null,40,10]
[32,{"$nulls":7},3,5]
[34,{"$nulls":4},8,3]
[36,{"$nulls":4},5,4]
[38,{"$nulls":4},3,5,null,5,4]
[40,null,null,7,4,4,7,null,3,5]
[42,null,null,4,6,8,3,null,4,7]
[44,null,null,6,7,5,4,null,8,3]
[46,null,null,2,2,1,5,null,4,4]
[48,null,null,3,3,3,6,null,1,5]
[50,null,null,7,6,8,4,null,2,6]
[52,null,null,8,4,4,4,null,7,4]
[54,6,3,null,null,1,3,null,4,4]
[56,5,4,null,null,3,6,null,2,3]
[58,4,5,null,null,4,4,null,3,6]
[60,7,null,null,null,5,5,null,3,4]
[{"$nulls":8},6,5]

{"sheet":"Sheet2","index":1,"n_rows":0,"n_cols":0,"rows_kept":0,"cut":false,"hidden":false,"merged":[],"flags":["formulas_cached_only"]}

{"sheet":"Sheet3","index":2,"n_rows":0,"n_cols":0,"rows_kept":0,"cut":false,"hidden":false,"merged":[],"flags":["formulas_cached_only"]}