diff --git a/CMDB2CSV_Aufbaumaster.py b/CMDB2CSV_Aufbaumaster.py
index ebc70104..eccda234 100755
--- a/CMDB2CSV_Aufbaumaster.py
+++ b/CMDB2CSV_Aufbaumaster.py
@@ -117,7 +117,6 @@ class MainUI(QDialog):  # erbt von QDialog
 
 
 ##############################################################################################
-    #def collect_erweiterung(self):
 
     def has_special_characters(self, s):
         # Regex pattern für Sonderzeichen
@@ -392,15 +391,28 @@ class MainUI(QDialog):  # erbt von QDialog
         self.df_vte_erw = self.df_vte_erw[self.df_vte_erw['Gruppierung'] == 'Erweiterung']
 
         print("Self_ERW: ",self.df_vte_erw['Hostname'])
+        self.df_vte_erw = self.df_vte_erw.reset_index(drop=True)
         
         self.df_cmdb_erw = self.df_cmdb
         self.df_cmdb_erw['Hostname']= self.df_cmdb_erw['Hostname'].replace('', np.nan)
 
         self.df_cmdb_erw['Hostname'] = self.df_cmdb_erw['Hostname'].fillna(method='ffill')
-        self.df_cmdb_erw = self.df_cmdb_erw[self.df_cmdb_erw['Filter'] == 'Grundgerät']
+        self.df_cmdb_erw = self.df_cmdb_erw[self.df_cmdb_erw['Filter'] == 'Erweiterung']
+        self.df_cmdb_erw = self.df_cmdb_erw.reset_index(drop=True)
+
+        self.df_cmdb_erw = self.df_cmdb_erw.drop(
+            columns=['WV-Start', 'WV-Ende', 'CMDB-Status', 'Aufgabe Schritt', 'Filter', 'Waermeabgabe [BTU/h]',
+                     'kalk. Strom [A]'])
         
         # Zusammensetzen der Tabellen
-        self.dfb_erw = self.df_vte_erw.merge(self.df_cmdb_erw, on=['Hostname'], how='left')
+        #self.dfb_erw = self.df_vte_erw.merge(self.df_cmdb_erw)
+        self.dfb_erw = pd.concat([self.df_cmdb_erw, self.df_vte_erw], ignore_index=False)
+        #self.dfb_erw = (pd.concat([self.df_cmdb_erw, self.df_vte_erw])
+        #       .sort_index(kind='stable')
+        #       .reset_index(drop=True)
+        #       )
+
+
 
         ic(self.dfb_erw)
 
@@ -416,11 +428,12 @@ class MainUI(QDialog):  # erbt von QDialog
                                                            options=options)
         
 
-        print(os.path.splitext(os.path.basename(self.savefilename))[0])
-        print(os.path.splitext(os.path.basename(self.savefilename))[1])
+        #print(os.path.splitext(os.path.basename(self.savefilename))[0])
+        #print(os.path.splitext(os.path.basename(self.savefilename))[1])
 
         self.dfb_gg.to_csv(os.path.splitext(os.path.basename(self.savefilename))[0]+"_GG"+os.path.splitext(os.path.basename(self.savefilename))[1], index=None, header=True, encoding='utf-8')
-        self.dfb_erw.to_csv(self.savefilename+"_ERW", index=None, header=True, encoding='utf-8')
+        self.dfb_erw.to_csv(os.path.splitext(os.path.basename(self.savefilename))[0]+"_ERW"+os.path.splitext(os.path.basename(self.savefilename))[1], index=None, header=True, encoding='utf-8')
+            #self.savefilename+"_ERW", index=None, header=True, encoding='utf-8')
         print("Datei wurde gespeichert:", self.savefilename)