Index: jackrabbit-text-extractors/src/main/java/org/apache/jackrabbit/extractor/MsExcelTextExtractor.java
===================================================================
--- jackrabbit-text-extractors/src/main/java/org/apache/jackrabbit/extractor/MsExcelTextExtractor.java	(revision 641528)
+++ jackrabbit-text-extractors/src/main/java/org/apache/jackrabbit/extractor/MsExcelTextExtractor.java	(working copy)
@@ -54,7 +54,7 @@
      * Creates a new <code>MsExcelTextExtractor</code> instance.
      */
     public MsExcelTextExtractor() {
-        super(new String[]{"application/vnd.ms-excel"});
+        super(new String[]{"application/vnd.ms-excel, application/msexcel"});
     }
 
     //-------------------------------------------------------< TextExtractor >