diff --git a/source/java/org/alfresco/repo/content/transform/OpenOfficeContentTransformerWorker.java b/source/java/org/alfresco/repo/content/transform/OpenOfficeContentTransformerWorker.java
index f8eb99adbe..ed27034f09 100644
--- a/source/java/org/alfresco/repo/content/transform/OpenOfficeContentTransformerWorker.java
+++ b/source/java/org/alfresco/repo/content/transform/OpenOfficeContentTransformerWorker.java
@@ -150,6 +150,19 @@ public class OpenOfficeContentTransformerWorker extends ContentTransformerHelper
         {
             return false;
         }
+        // OpenOffice 3.2.x doesn't seem to support all Office 97 to Office 07 conversions
+        else if (sourceMimetype.equals(MimetypeMap.MIMETYPE_WORD) && targetMimetype.equals(MimetypeMap.MIMETYPE_OPENXML_WORDPROCESSING))
+        {
+            return false;
+        }
+        else if (sourceMimetype.equals(MimetypeMap.MIMETYPE_EXCEL) && targetMimetype.equals(MimetypeMap.MIMETYPE_OPENXML_SPREADSHEET))
+        {
+            return false;
+        }
+        else if (sourceMimetype.equals(MimetypeMap.MIMETYPE_HTML) && targetMimetype.equals(MimetypeMap.MIMETYPE_OPENXML_WORDPROCESSING))
+        {
+            return false;
+        }
 
         MimetypeService mimetypeService = getMimetypeService();
         String sourceExtension = mimetypeService.getExtension(sourceMimetype);