diff --git a/src/PhpSpreadsheet/Style/NumberFormat.php b/src/PhpSpreadsheet/Style/NumberFormat.php
index 9c9a54560e..37077f8f76 100644
--- a/src/PhpSpreadsheet/Style/NumberFormat.php
+++ b/src/PhpSpreadsheet/Style/NumberFormat.php
@@ -16,6 +16,7 @@ class NumberFormat extends Supervisor
     const FORMAT_NUMBER_00 = '0.00';
     const FORMAT_NUMBER_COMMA_SEPARATED1 = '#,##0.00';
     const FORMAT_NUMBER_COMMA_SEPARATED2 = '#,##0.00_-';
+    const FORMAT_NUMBER_COMMA_SEPARATED3 = '#,##0';
 
     const FORMAT_PERCENTAGE = '0%';
     const FORMAT_PERCENTAGE_0 = '0.0%';