Complete sheet with totals

src/reports/ReportExcelCompared.h

@@ -1,14 +1,16 @@
 #pragma once
 #include "ReportExcel.h"
 namespace platform {
-    class ReportExcelCompared {
+    class ReportExcelCompared : public ExcelFile {
     public:
         explicit ReportExcelCompared(json& data_A, json& data_B);
         ~ReportExcelCompared();
         void report();
     private:
+        void header();
+        void body();
+        void footer(std::vector<double>& totals_A, std::vector<double>& totals_B, int row);
         json& data_A;
         json& data_B;
-        lxw_workbook* workbook;
     };
 };