diff --git a/plugins/csv_export/csv_export.js b/plugins/csv_export/csv_export.js
--- a/plugins/csv_export/csv_export.js
+++ b/plugins/csv_export/csv_export.js
@@ -25,10 +25,24 @@
  * for the JavaScript code in this file.
  */
 
-if (window.rcmail) {
-    rcmail.addEventListener('beforeexport', function(e) { return csv_export_dialog(e, 'export'); })
-        .addEventListener('beforeexport-selected', function(e) { return csv_export_dialog(e, 'export-selected'); });
-}
+window.rcmail && rcmail.addEventListener('init', function() {
+    if (rcmail.task == 'addressbook') {
+        rcmail.addEventListener('beforeexport', function(e) { return csv_export_dialog(e, 'export'); })
+            .addEventListener('beforeexport-selected', function(e) { return csv_export_dialog(e, 'export-selected'); });
+    }
+    // for tasks export we already have dialog, add format selector there
+    else if (rcmail.task == 'tasks') {
+      var options = [
+          $('<option>').attr({value: 'itip', selected: true}).text('iCal'),
+          $('<option>').attr({value: 'csv'}).text('csv')
+        ],
+        entry = $('<div>').attr('class', 'form-section')
+          .append($('<label>').attr('for', 'tasks-export-form-format').text(rcmail.get_label('csv_export.format')))
+          .append($('<select>').attr({name: '_format', id: 'tasks-export-form-format'}).append(options));
+
+      $('#tasks-export-form').append(entry);
+    }
+});
 
 // Display dialog with format selection
 function csv_export_dialog(event, action)
@@ -90,7 +104,12 @@
         return;
     }
 
-    var params = {_source: rcmail.env.source, _gid: rcmail.env.group, _format: 'csv'};
+    var params = {
+        _source: rcmail.env.source,
+        _gid: rcmail.env.group,
+        _format: 'csv',
+        _token: rcmail.env.request_token
+      };
 
     if (action == 'export') {
         params._search = rcmail.env.search_request;
diff --git a/plugins/csv_export/csv_export.php b/plugins/csv_export/csv_export.php
--- a/plugins/csv_export/csv_export.php
+++ b/plugins/csv_export/csv_export.php
@@ -24,7 +24,7 @@
 
 class csv_export extends rcube_plugin
 {
-    public $task = 'addressbook';
+    public $task = 'addressbook|tasks';
 
 
     /**
@@ -36,9 +36,10 @@
 
         // register hooks
         $this->add_hook('addressbook_export', array($this, 'addressbook_export'));
+        $this->add_hook('tasks_export', array($this, 'tasks_export'));
 
         // Add localization and js script
-        if ($this->api->output->type == 'html' && !$this->rcmail->action) {
+        if ($this->api->output->type == 'html' && !$rcmail->action) {
             $this->add_texts('localization', true);
             $this->api->output->add_label('export', 'cancel');
             $this->include_script('csv_export.js');
@@ -62,7 +63,10 @@
 
         require_once(__DIR__ . '/vcard2csv.php');
 
-        $csv = new vcard2csv;
+        $csv    = new vcard2csv;
+        $rcmail = rcube::get_instance();
+
+        $rcmail->output->nocacheing_headers();
 
         // send downlaod headers
         $csv->headers();
@@ -83,4 +87,40 @@
 
         exit;
     }
+
+    /**
+     * Handler for the tasks_export hook.
+     *
+     * @param array $p Hash array with hook parameters
+     *
+     * @return array Hash array with modified hook parameters
+     */
+    public function tasks_export($p)
+    {
+        if ($_GET['_format'] != 'csv' && $_POST['_format'] != 'csv') {
+            return $p;
+        }
+
+        require_once(__DIR__ . '/event2csv.php');
+
+        $csv    = new event2csv;
+        $rcmail = rcube::get_instance();
+
+        $rcmail->output->nocacheing_headers();
+
+        // don't kill the connection if download takes more than 30 sec.
+        @set_time_limit(300);
+
+        // send downlaod headers
+        $csv->headers(preg_replace('/\.ics$/', '.csv', $p['filename']));
+
+        // sent format line
+        echo $csv->head();
+
+        foreach ((array) $p['result'] as $record) {
+            echo $csv->record($record);
+        }
+
+        exit;
+    }
 }
diff --git a/plugins/csv_export/event2csv.php b/plugins/csv_export/event2csv.php
new file mode 100644
--- /dev/null
+++ b/plugins/csv_export/event2csv.php
@@ -0,0 +1,148 @@
+<?php
+
+/**
+ * Task/Event to CSV converter
+ *
+ * @version @package_version@
+ * @author Aleksander Machniak <machniak@kolabsys.com>
+ *
+ * Copyright (C) 2011-2016, Kolab Systems AG <contact@kolabsys.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+class event2csv
+{
+    /**
+     * CSV label to text mapping for English
+     *
+     * @var array
+     */
+    protected $fields = array(
+        'uid'              => "UID",
+        'title'            => "Title",
+        'description'      => "Description",
+        'start'            => "Start",
+        'due'              => "Due",
+        'organizer_name'   => "Organizer Name",
+        'organizer_email'  => "Organizer Email",
+    );
+
+
+    /**
+     * Convert task/event to CSV record
+     *
+     * @param string $event Event data
+     *
+     * @return string CSV record
+     */
+    public function record($event)
+    {
+        $csv = array();
+
+        foreach (array_keys($this->fields) as $key) {
+            $value = $event[$key];
+
+            switch ($key) {
+            case 'start':
+            case 'due':
+                if ($value) {
+                    $value = $value->format($value->_dateonly ? 'Y-m-d' : 'Y-m-d H:i:s');
+                }
+                break;
+
+            case 'organizer_email':
+                $value = $event['organizer']['email'];
+                break;
+
+            case 'organizer_name':
+                $value = $event['organizer']['name'];
+                break;
+            }
+
+            $csv[] = $value;
+        }
+
+        return $this->csv($csv);
+    }
+
+    /**
+     * Build csv data header (list of field names)
+     *
+     * @return string CSV file header
+     */
+    public function head()
+    {
+        return $this->csv($this->fields);
+    }
+
+    /**
+     * Send headers of file download
+     */
+    public static function headers($filename = 'tasks.csv')
+    {
+        // send downlaod headers
+        header('Content-Type: text/csv; charset=' . RCUBE_CHARSET);
+        header('Content-Disposition: attachment; filename="' . $filename . '"');
+    }
+
+    /**
+     * Creates CSV record
+     */
+    protected function csv($fields = array(), $delimiter = ',', $enclosure = '"')
+    {
+        $str         = '';
+        $escape_char = "\\";
+
+        foreach ($fields as $value) {
+            if (strpos($value, $delimiter) !== false
+                || strpos($value, $enclosure) !== false
+                || strpos($value, ' ') !== false
+                || strpos($value, "\n") !== false
+                || strpos($value, "\r") !== false
+                || strpos($value, "\t") !== false
+            ) {
+                $str2    = $enclosure;
+                $escaped = 0;
+                $len     = strlen($value);
+
+                for ($i=0; $i<$len; $i++) {
+                    if ($value[$i] == $escape_char) {
+                        $escaped = 1;
+                    }
+                    else if (!$escaped && $value[$i] == $enclosure) {
+                        $str2 .= $enclosure;
+                    }
+                    else {
+                        $escaped = 0;
+                    }
+
+                    $str2 .= $value[$i];
+                }
+
+                $str2 .= $enclosure;
+                $str  .= $str2 . $delimiter;
+            }
+            else {
+                $str .= $value . $delimiter;
+            }
+        }
+
+        if (!empty($fields)) {
+            $str[strlen($str)-1] = "\n";
+        }
+
+        return $str;
+   }
+}
diff --git a/plugins/csv_export/localization/en_US.inc b/plugins/csv_export/localization/en_US.inc
--- a/plugins/csv_export/localization/en_US.inc
+++ b/plugins/csv_export/localization/en_US.inc
@@ -13,3 +13,4 @@
 $labels['text'] = 'Please, choose the export file format:';
 $labels['csv'] = 'CSV (comma-separated)';
 $labels['vcf'] = 'vCard';
+$labels['format'] = 'Format';
diff --git a/plugins/csv_export/vcard2csv.php b/plugins/csv_export/vcard2csv.php
--- a/plugins/csv_export/vcard2csv.php
+++ b/plugins/csv_export/vcard2csv.php
@@ -158,11 +158,11 @@
     /**
      * Send headers of file download
      */
-    public static function headers()
+    public static function headers($filename = 'contacts.csv')
     {
         // send downlaod headers
         header('Content-Type: text/csv; charset=' . RCUBE_CHARSET);
-        header('Content-Disposition: attachment; filename="contacts.csv"');
+        header('Content-Disposition: attachment; filename="' . $filename . '"');
     }
 
     protected function csv($fields = array(), $delimiter = ',', $enclosure = '"')