Added custom formula for totals row + Example File

Examples/Tables/TotalsRow.ps1

@@ -0,0 +1,15 @@
+try {Import-Module $PSScriptRoot\..\..\ImportExcel.psd1} catch {throw ; return}
+
+$r = Get-ChildItem C:\WINDOWS\system32 -File
+
+$TotalSettings = @{ 
+    Length = "Sum"
+    Name = "Count"
+    Extension = @{
+        # You can create the formula in an Excel workbook first and copy-paste it here
+        # This syntax can only be used for the Custom type
+        Custom = "=COUNTIF([Extension];`".exe`")"
+    }
+}
+
+$r | Export-Excel -TableName system32files -TableStyle Medium10 -TotalSettings $TotalSettings -Show