diff --git a/cis/private/lehre/notenliste.xls.php b/cis/private/lehre/notenliste.xls.php
index 76d8cfe2a..14d72eccb 100644
--- a/cis/private/lehre/notenliste.xls.php
+++ b/cis/private/lehre/notenliste.xls.php
@@ -246,7 +246,7 @@ else
 						$note='';
 					$worksheet->write($lines,1,$elem->nachname.$inc);
 					$worksheet->write($lines,2,$elem->vorname);
-					$worksheet->write($lines,3,$elem->semester.$elem->verband.$elem->gruppe);
+					$worksheet->write($lines,3,'="'.$elem->semester.$elem->verband.$elem->gruppe.'"');
 					$worksheet->write($lines,4,'="'.trim($elem->matrikelnr).'"',$format_highlight);
 					$worksheet->write($lines,5,$note,$format_highlight);
 					$i++;
diff --git a/config/cis.config-default.inc.php b/config/cis.config-default.inc.php
index 5dceae7bd..aa24ca99a 100644
--- a/config/cis.config-default.inc.php
+++ b/config/cis.config-default.inc.php
@@ -11,6 +11,7 @@ error_reporting(E_ALL);
 mb_internal_encoding("UTF-8");
 mb_regex_encoding("UTF-8");
 setlocale (LC_ALL, 'de_AT.utf8');
+setlocale (LC_NUMERIC, 'C');
 
 // Zeitzone
 date_default_timezone_set('Europe/Vienna');
diff --git a/include/statistik.class.php b/include/statistik.class.php
index c66ddb503..85fb6e834 100644
--- a/include/statistik.class.php
+++ b/include/statistik.class.php
@@ -605,6 +605,11 @@ class statistik extends basis_db
 	{
 		return json_encode($this->json);
 	}
+	
+	function getArray()
+	{
+		return $this->json;
+	}
 
 	/**
 	 *