diff -Nur o/Documentation.html n/Documentation.html
--- o/Documentation.html	2012-01-22 12:58:08.000000000 +0100
+++ n/Documentation.html	2012-01-22 12:58:41.000000000 +0100
@@ -84,6 +84,12 @@
                 </li>
                 <li>To support upload progress bars, see <a href="#faq2_9">
                     <abbr title="Frequently Asked Questions">FAQ</abbr> 2.9</a>.</li>
+                <li>To support BLOB streaming, see PHP and MySQL requirements
+                in <a href="#faq6_25">
+                    <abbr title="Frequently Asked Questions">FAQ</abbr> 6.25</a>.</li>
+                <li>To support XML and Open Document Spreadsheet importing,
+                you need PHP 5.2.17 or newer and the 
+                <a href="http://www.php.net/libxml"><tt>libxml</tt></a> extension.</li>
         </ul>
     </li>
     <li><b>MySQL</b> 5.0 or newer (<a href="#faq1_17">details</a>);</li>
diff -Nur o/libraries/import/ods.php n/libraries/import/ods.php
--- o/libraries/import/ods.php	2010-09-07 18:35:56.000000000 +0200
+++ n/libraries/import/ods.php	2012-01-22 12:58:41.000000000 +0100
@@ -14,6 +14,13 @@
 }
 
 /**
+ * We need way to disable external XML entities processing.
+ */
+if (!function_exists('libxml_disable_entity_loader')) {
+    return;
+}
+
+/**
  * The possible scopes for $plugin_param are: 'table', 'database', and 'server'
  */
 
@@ -62,6 +69,11 @@
 unset($data);
 
 /**
+ * Disable loading of external XML entities.
+ */
+libxml_disable_entity_loader();
+
+/**
  * Load the XML string
  *
  * The option LIBXML_COMPACT is specified because it can
diff -Nur o/libraries/import/xml.php n/libraries/import/xml.php
--- o/libraries/import/xml.php	2010-09-07 18:35:56.000000000 +0200
+++ n/libraries/import/xml.php	2012-01-22 12:58:41.000000000 +0100
@@ -13,6 +13,13 @@
 }
 
 /**
+ * We need way to disable external XML entities processing.
+ */
+if (!function_exists('libxml_disable_entity_loader')) {
+    return;
+}
+
+/**
  * The possible scopes for $plugin_param are: 'table', 'database', and 'server'
  */
 
@@ -57,6 +64,11 @@
 unset($data);
 
 /**
+ * Disable loading of external XML entities.
+ */
+libxml_disable_entity_loader();
+
+/**
  * Load the XML string
  *
  * The option LIBXML_COMPACT is specified because it can