made Excel tests work

git-svn-id: https://src.springframework.org/svn/spring-framework/trunk@2289 50f2f4bb-b051-0410-bef5-90022cba6387

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" />