diff --git a/theme/views_data_export.theme.inc b/theme/views_data_export.theme.inc
index 3bc39fe..e18b97a 100644
--- a/theme/views_data_export.theme.inc
+++ b/theme/views_data_export.theme.inc
@@ -279,6 +279,18 @@ function template_preprocess_views_data_export_msoffice_body(&$vars) {
     'odd' => 'even',
   );
   $class = 'even';
+
+  // Add grouping.
+  if (!empty($vars['title'])) {
+    $cell = array(
+      'data' => '<strong> ' . $vars['title'] . '</strong>',
+      'colspan' => count($vars['header']),
+    );
+    $output .= ' <tr>';
+    $output .= _theme_table_cell($cell);
+    $output .= " </tr>\n";
+  }
+
   foreach ($vars['themed_rows'] as $number => $row) {
     $attributes = array();