{"text_format":"2","workbook":"xls","n_sheets":3,"sheets":["Sheet1","Sheet2","Sheet3"],"not_rendered":{"charts":0,"images":0,"macros":1,"external_links":2,"defined_names":3,"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":"1900","formulas":"cached_only"}

{"sheet":"Sheet1","index":0,"n_rows":16,"n_cols":10,"rows_kept":16,"cut":false,"hidden":false,"merged":[],"flags":["formulas_cached_only"]}
["Insert a formula into cell B6 using \"intensity\", \"coefficient\" and \"thickness\" as variable names."]
["Copy or spread the formula to G and B and then down to as many layers as one wants to calculate."]
["\"coefficient\" is the period thickness expressed in number of layers."]
[]
[null,"R","G","B","R hex","G hex","B hex","HTML ocde",null,"<!-- One can just copy the cells below this one (the column) to notepad and save as html. Then just copy again and save again and so on. One may change the height and width parametars of the table. -->"]
[{"$nulls":9},"<html><head></head>"]
["intensity",1,1,1,"FF","FF","FF","#FFFFFF","background","<body style='background-color:#FFFFFF'>"]
["coefficient",{"$nulls":8},"<table width=\"200\" height=\"300\">"]
["thickness"]
[1,null,null,null,"00","00","00","#000000",null,"<tr><td style='background-color:#000000'></td></tr>"]
[2,null,null,null,"00","00","00","#000000",null,"<tr><td style='background-color:#000000'></td></tr>"]
[3,null,null,null,"00","00","00","#000000",null,"<tr><td style='background-color:#000000'></td></tr>"]
[4,null,null,null,"00","00","00","#000000",null,"<tr><td style='background-color:#000000'></td></tr>"]
[5,null,null,null,"00","00","00","#000000",null,"<tr><td style='background-color:#000000'></td></tr>"]
[6,null,null,null,"00","00","00","#000000",null,"<tr><td style='background-color:#000000'></td></tr>"]
[{"$nulls":9},"</table></body></html>"]

{"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"]}