diff --git a/src/documentation/xdocs/hssf/chart.xml b/src/documentation/xdocs/hssf/chart.xml
index bbf427864a..49320f81f6 100644
--- a/src/documentation/xdocs/hssf/chart.xml
+++ b/src/documentation/xdocs/hssf/chart.xml
@@ -1395,6 +1395,19 @@
     [SINDEX]
 [EOF]
             </source>
+            <p>
+                Just a quick note on some of the unknown records:
+            </p>
+            <ul>
+                <li>EC: MSODRAWING - A Microsoft drawing record. (Need to
+                track down where this is documented).</li>
+                <li>5D: OBJ: Description of a drawing object. (This is going to
+                be a PITA to implement).</li>
+                <li>33: Not documented. :-(</li>
+                <li>105f: Not documented.  :-(</li>
+                <li>104f: POS: Position record (should be able to safely leave this out).</li>
+                <li>1022: CHARTFORMATLINK: Can be left out.</li>
+            </ul>
             <p>
                 It is currently suspected that many of those records could be
                 left out when generating a bar chart from scratch.  The way