diff --git a/spring-framework.ipr b/spring-framework.ipr
index a7ccbe06ca..b0aec2604d 100644
--- a/spring-framework.ipr
+++ b/spring-framework.ipr
@@ -191,6 +191,7 @@
       <entry name="*.dtd" />
       <entry name="*.xsd" />
       <entry name="*.tld" />
+      <entry name="*.xls" />
       <entry name="*.vm" />
       <entry name="*.ftl" />
       <entry name="*.sql" />