--- src/ooxml/java/org/apache/poi/POIXMLProperties.java	(revision 1751911)
+++ src/ooxml/java/org/apache/poi/POIXMLProperties.java	(working copy)
@@ -301,6 +301,12 @@ 
         public void setLastPrinted(String date) {
             part.setLastPrintedProperty(date);
         }
+        public String getLastModifiedBy() {
+            return part.getLastModifiedByProperty().getValue();
+        }
+        public void setLastModifiedBy(String lastModifiedBy) {
+            part.setLastModifiedByProperty(lastModifiedBy);
+        }
         public Date getModified() {
             return part.getModifiedProperty().getValue();
         }
--- src/ooxml/testcases/org/apache/poi/TestPOIXMLProperties.java	(revision 1751911)
+++ src/ooxml/testcases/org/apache/poi/TestPOIXMLProperties.java	(working copy)
@@ -174,6 +174,8 @@ 
         assertTrue(dateTimeEqualToUTCString(created, "2009-07-20T13:12:00Z"));
         String creator = _coreProperties.getCreator();
         assertEquals("Paolo Mottadelli", creator);
+        String lastModifiedBy = _coreProperties.getLastModifiedBy();
+        assertEquals("Paolo Mottadelli", lastModifiedBy);
         String subject = _coreProperties.getSubject();
         assertEquals("Greetings", subject);
         String title = _coreProperties.getTitle();