Adds switch for PivotDataToColumn so calculated values appear in columns instead of rows

Export-Excel.ps1

@@ -27,6 +27,7 @@ function Export-Excel {
         [string[]]$PivotRows,
         [string[]]$PivotColumns,
         $PivotData,
+        [Switch]$PivotDataToColumn,
         [string]$Password,
         [OfficeOpenXml.Drawing.Chart.eChartType]$ChartType="Pie",
         [Switch]$IncludePivotTable,
@@ -292,6 +293,9 @@ function Export-Excel {
                         $df.Function = 'Count'
                     }
                 }
+                if($PivotDataToColumn) {
+                    $pivotTable.DataOnRows = $false
+                }
             }
 
             if($IncludePivotChart) {