diff --git a/lib/filelib.php b/lib/filelib.php
index 7a10c54d89783..536573a878a82 100644
--- a/lib/filelib.php
+++ b/lib/filelib.php
@@ -58,6 +58,9 @@ function get_mimetypes_array() {
         'dv'   => array ('type'=>'video/x-dv', 'icon'=>'video.gif'),
         'dmg'  => array ('type'=>'application/octet-stream', 'icon'=>'dmg.gif'),
         'doc'  => array ('type'=>'application/msword', 'icon'=>'word.gif'),
+        'docx' => array ('type'=>'application/msword', 'icon'=>'docx.gif'),
+        'docm' => array ('type'=>'application/msword', 'icon'=>'docm.gif'),
+        'dotx' => array ('type'=>'application/msword', 'icon'=>'dotx.gif'),
         'dcr'  => array ('type'=>'application/x-director', 'icon'=>'flash.gif'),
         'dif'  => array ('type'=>'video/x-dv', 'icon'=>'video.gif'),
         'dir'  => array ('type'=>'application/x-director', 'icon'=>'flash.gif'),
@@ -125,6 +128,13 @@ function get_mimetypes_array() {
         'png'  => array ('type'=>'image/png', 'icon'=>'image.gif'),
         'pps'  => array ('type'=>'application/vnd.ms-powerpoint', 'icon'=>'powerpoint.gif'),
         'ppt'  => array ('type'=>'application/vnd.ms-powerpoint', 'icon'=>'powerpoint.gif'),
+        'pptx' => array ('type'=>'application/vnd.ms-powerpoint', 'icon'=>'pptx.gif'),
+        'pptm' => array ('type'=>'application/vnd.ms-powerpoint', 'icon'=>'pptm.gif'),
+        'potx' => array ('type'=>'application/vnd.ms-powerpoint', 'icon'=>'potx.gif'),
+        'potm' => array ('type'=>'application/vnd.ms-powerpoint', 'icon'=>'potm.gif'),
+        'ppam' => array ('type'=>'application/vnd.ms-powerpoint', 'icon'=>'ppam.gif'),
+        'ppsx' => array ('type'=>'application/vnd.ms-powerpoint', 'icon'=>'ppsx.gif'),
+        'ppsm' => array ('type'=>'application/vnd.ms-powerpoint', 'icon'=>'ppsm.gif'),
         'ps'   => array ('type'=>'application/postscript', 'icon'=>'pdf.gif'),
         'qt'   => array ('type'=>'video/quicktime', 'icon'=>'video.gif'),
         'ra'   => array ('type'=>'audio/x-realaudio', 'icon'=>'audio.gif'),
@@ -170,6 +180,12 @@ function get_mimetypes_array() {
         'xfd'  => array ('type'=>'application/pdf', 'icon'=>'pdf.gif'),
         'xfdf' => array ('type'=>'application/pdf', 'icon'=>'pdf.gif'),
         'xls'  => array ('type'=>'application/vnd.ms-excel', 'icon'=>'excel.gif'),
+        'xlsx' => array ('type'=>'application/vnd.ms-excel', 'icon'=>'xlsx.gif'),
+        'xlsm' => array ('type'=>'application/vnd.ms-excel', 'icon'=>'xlsm.gif'),
+        'xltx' => array ('type'=>'application/vnd.ms-excel', 'icon'=>'xltx.gif'),
+        'xltm' => array ('type'=>'application/vnd.ms-excel', 'icon'=>'xltm.gif'),
+        'xlsb' => array ('type'=>'application/vnd.ms-excel', 'icon'=>'xlsb.gif'),
+        'xlam' => array ('type'=>'application/vnd.ms-excel', 'icon'=>'xlam.gif'),
         'xml'  => array ('type'=>'application/xml', 'icon'=>'xml.gif'),
         'xsl'  => array ('type'=>'text/xml', 'icon'=>'xml.gif'),
         'zip'  => array ('type'=>'application/zip', 'icon'=>'zip.gif')
diff --git a/pix/f/docm.gif b/pix/f/docm.gif
new file mode 100644
index 0000000000000..7da1fc1a7b59c
Binary files /dev/null and b/pix/f/docm.gif differ
diff --git a/pix/f/docx.gif b/pix/f/docx.gif
new file mode 100644
index 0000000000000..2843dea6848c5
Binary files /dev/null and b/pix/f/docx.gif differ
diff --git a/pix/f/dotm.gif b/pix/f/dotm.gif
new file mode 100644
index 0000000000000..29bfb7bde95d6
Binary files /dev/null and b/pix/f/dotm.gif differ
diff --git a/pix/f/dotx.gif b/pix/f/dotx.gif
new file mode 100644
index 0000000000000..443d3882be0df
Binary files /dev/null and b/pix/f/dotx.gif differ
diff --git a/pix/f/odt.gif b/pix/f/odt.gif
index 0cbc73ca813c0..d09b2a344c706 100755
Binary files a/pix/f/odt.gif and b/pix/f/odt.gif differ
diff --git a/pix/f/potm.gif b/pix/f/potm.gif
new file mode 100644
index 0000000000000..cff9e99e44158
Binary files /dev/null and b/pix/f/potm.gif differ
diff --git a/pix/f/potx.gif b/pix/f/potx.gif
new file mode 100644
index 0000000000000..6c40066b25d60
Binary files /dev/null and b/pix/f/potx.gif differ
diff --git a/pix/f/ppam.gif b/pix/f/ppam.gif
new file mode 100644
index 0000000000000..9de80734f688a
Binary files /dev/null and b/pix/f/ppam.gif differ
diff --git a/pix/f/ppsm.gif b/pix/f/ppsm.gif
new file mode 100644
index 0000000000000..a6b9a4683b174
Binary files /dev/null and b/pix/f/ppsm.gif differ
diff --git a/pix/f/ppsx.gif b/pix/f/ppsx.gif
new file mode 100644
index 0000000000000..e54ee1ac68af5
Binary files /dev/null and b/pix/f/ppsx.gif differ
diff --git a/pix/f/pptm.gif b/pix/f/pptm.gif
new file mode 100644
index 0000000000000..d9e1e2fcef5ef
Binary files /dev/null and b/pix/f/pptm.gif differ
diff --git a/pix/f/pptx.gif b/pix/f/pptx.gif
new file mode 100644
index 0000000000000..fdef00d9cd251
Binary files /dev/null and b/pix/f/pptx.gif differ
diff --git a/pix/f/xlam.gif b/pix/f/xlam.gif
new file mode 100644
index 0000000000000..3448341489fb1
Binary files /dev/null and b/pix/f/xlam.gif differ
diff --git a/pix/f/xlsb.gif b/pix/f/xlsb.gif
new file mode 100644
index 0000000000000..c9dc26e98f99e
Binary files /dev/null and b/pix/f/xlsb.gif differ
diff --git a/pix/f/xlsm.gif b/pix/f/xlsm.gif
new file mode 100644
index 0000000000000..321d33cf76b20
Binary files /dev/null and b/pix/f/xlsm.gif differ
diff --git a/pix/f/xlsx.gif b/pix/f/xlsx.gif
new file mode 100644
index 0000000000000..8d878992d2cf2
Binary files /dev/null and b/pix/f/xlsx.gif differ
diff --git a/pix/f/xltm.gif b/pix/f/xltm.gif
new file mode 100644
index 0000000000000..8733676a8921f
Binary files /dev/null and b/pix/f/xltm.gif differ
diff --git a/pix/f/xltx.gif b/pix/f/xltx.gif
new file mode 100644
index 0000000000000..fa891e18420b1
Binary files /dev/null and b/pix/f/xltx.gif differ