{"text_format":"1","workbook":"xlsx","n_sheets":2,"sheets":["2018","2019"],"not_rendered":{"charts":0,"images":0,"macros":0,"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":"2018","index":0,"n_rows":6,"n_cols":4,"rows_kept":6,"cut":false,"hidden":false,"merged":[]}
["Month","Day","Number of visitors","Using sum to count visitors/month"]
["Dec",22,70,{"$f":"SUM(C2:C4)","v":234}]
["Dec",23,89]
["Dec",30,75]
[null,null,null,"Grand total"]
[null,null,null,{"$f":"SUM(D2:D4)","v":234}]

{"sheet":"2019","index":1,"n_rows":36,"n_cols":4,"rows_kept":36,"cut":false,"hidden":false,"merged":[]}
["Month","Day","Number of visitors","Using sum to count visitors/month"]
["Jan",2,15,{"$f":"SUM(C2:C5)","v":139}]
["Jan",12,25]
["Jan",24,38]
["Jan",31,61]
["Feb",13,52,{"$f":"SUM(C6:C7)","v":92}]
["Feb",14,40]
["Mar",1,100,{"$f":"SUM(C8:C11)","v":319}]
["Mar",14,98]
["Mar",25,53]
["Mar",30,68]
["Apr",1,27,{"$f":"SUM(C12:C14)","v":147}]
["Apr",9,100]
["Apr",10,20]
["Jun",2,67,{"$f":"SUM(C15:C18)","v":241}]
["Jun",3,43]
["Jun",4,54]
["Jun",5,77]
["Jul",1,69,{"$f":"SUM(C19:C20)","v":142}]
["Jul",30,73]
["Aug",2,99,{"$f":"SUM(C21:C23)","v":227}]
["Aug",3,52]
["Aug",4,76]
["Oct",31,38,{"$f":"SUM(C24)","v":38}]
["Nov",3,58,{"$f":"SUM(C25:C29)","v":322}]
["Nov",7,63]
["Nov",15,48]
["Nov",17,74]
["Nov",25,79]
["Dec",1,83,{"$f":"SUM(C30:C34)","v":205}]
["Dec",3,64]
["Dec",6,16]
["Dec",10,41]
["Dec",16,1]
[null,null,null,"Grand total"]
[null,null,null,{"$f":"SUM(D2:D30)","v":1872}]