diff --git a/.gitignore b/.gitignore
index 1b7f6df..9006122 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 *~
-\#*\#
\ No newline at end of file
+\#*\#
+/vendor
diff --git a/.travis.yml b/.travis.yml
index f374329..c3d7f54 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,27 +2,27 @@ language: php
 
 php:
   - 5.3
+  - 5.4
+  - 5.5
 
 env:
-  - DB=mysql CAKEPHP=2.1.4
-  - DB=mysql CAKEPHP=2.2.7
-  - DB=mysql CAKEPHP=2.3.6
+  - DB=mysql CAKEPHP=2.3.10
+  - DB=mysql CAKEPHP=2.4.10
+  - DB=mysql CAKEPHP=2.5.5
 
 before_script:
-  - sh -c "if [ '$DB' = 'mysql' ]; then mysql -e 'DROP DATABASE IF EXISTS cakephp_test;'; fi"
+  - composer install --dev
   - sh -c "if [ '$DB' = 'mysql' ]; then mysql -e 'CREATE DATABASE cakephp_test;'; fi"
   - wget https://github.com/cakephp/cakephp/tarball/$CAKEPHP -O cake.tar.gz
   - tar xf cake.tar.gz
   - mv cakephp-cakephp-* ./cakephp
-  - wget https://github.com/PHPOffice/PHPExcel/tarball/develop -O PHPExcel.tar.gz
-  - tar xf PHPExcel.tar.gz
-  - mv PHPOffice-PHPExcel-* ./cakephp/app/Vendor/PHPExcel
   - chmod -R 777 ./cakephp/app/tmp
   - echo "<?php
     App::build(array(
     'Plugin' => array('/home/travis/build/k1LoW/'),
     ));
     CakePlugin::loadAll();
+    ini_set('include_path',  '/home/travis/build/k1LoW/Xls/vendor/phpunit/phpunit' . PATH_SEPARATOR . ini_get('include_path'));
     " > cakephp/app/Config/bootstrap.php
   - echo "<?php
     class DATABASE_CONFIG {
@@ -49,4 +49,4 @@ before_script:
   - cd ./cakephp
 
 script:
-  - ./lib/Cake/Console/cake test Xls Lib/Xls --stderr
\ No newline at end of file
+  - ./lib/Cake/Console/cake test Xls Lib/Xls --stderr
diff --git a/Lib/Xls.php b/Lib/Xls.php
index 0f7343c..0bb074e 100644
--- a/Lib/Xls.php
+++ b/Lib/Xls.php
@@ -1,15 +1,13 @@
 <?php
-App::import('Vendor', 'PHPExcel', array('file' => 'PHPExcel' . DS . 'Classes' . DS . 'PHPExcel.php'));
-App::import('Vendor', 'PHPExcel_IOFactory', array('file' => 'PHPExcel' . DS . 'Classes' . DS . 'PHPExcel' . DS . 'IOFactory.php'));
-App::import('Vendor', 'PHPExcel_Cell_AdvancedValueBinder', array('file' => 'PHPExcel' . DS . 'Classes' . DS . 'PHPExcel' . DS . 'Cell' . DS . 'AdvancedValueBinder.php'));
+if (file_exists(dirname(__FILE__) . '/../vendor/autoload.php')) {
+    require_once(dirname(__FILE__) . '/../vendor/autoload.php');
+}
 
 /**
+ * Xls
  *
- *
- *
- * @params
  */
-class Xls{
+class Xls {
 
     public $xls;
     private $data;
@@ -278,4 +276,4 @@ private function __replace($value){
             return false;
         }
     }
-}
\ No newline at end of file
+}
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..0a28062
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,22 @@
+{
+    "name": "k1low/xls",
+    "description": "Xls: PHPExcel wrapper for CakePHP",
+    "type": "cakephp-plugin",
+    "keywords": ["cakephp", "excel"],
+    "homepage": "https://github.com/k1LoW/Xls",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Ken'ichiro Oyama",
+            "homepage": "https://github.com/k1LoW",
+            "role": "Author"
+        }
+    ],
+    "require": {
+        "composer/installers": "*",
+        "phpoffice/phpexcel": "*"
+    },
+    "require-dev": {
+		"phpunit/phpunit": "3.7.*"
+	}
+}