--- a/src/filters/xlsxmltocsv.py
+++ b/src/filters/xlsxmltocsv.py
@@ -45,4 +45,8 @@
         elif name == "worksheet":
             print("")
 
-xml.sax.parse(sys.stdin, XlsXmlHandler())
+try:
+    xml.sax.parse(sys.stdin, XlsXmlHandler())
+except:
+    sys.exit(1)
+sys.exit(0)