diff --git a/fhem/contrib/SolarForecast/controls_solarforecast_messages.txt b/fhem/contrib/SolarForecast/controls_solarforecast_messages.txt
index 140145537..1d34f1775 100644
--- a/fhem/contrib/SolarForecast/controls_solarforecast_messages.txt
+++ b/fhem/contrib/SolarForecast/controls_solarforecast_messages.txt
@@ -1,6 +1,14 @@
-# Das Fileformat muß so aussehen:
+#  Filestruktur für Mitteilungen:
+#  0|SV|1                   (= Severity 0 - 3)
+#  0|DE|Mitteilung 1....
+#  0|EN|Message 1 ...
+#  1|SV|2
+#  1|DE|Mitteilung 2....
+#  1|EN|Message 2 ...
 #
+#  Index kann bis max. 99999 laufen
 #
+####################################################
 0|SV|1
 0|DE|neue Mitteilung 1 ....
 0|EN|new Message 1 ...
\ No newline at end of file