Added spark

Author: limacohen

README.md

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+==============================
+PHPExcel Spark for CodeIgniter
+==============================
+This spark is just a package for [**PHPExcel**](https://github.com/PHPOffice/PHPExcel), a library for reading and writing spreadsheet files.
+
+Installation
+============
+Once loaded, just use $this->excel
+
+Like it?
+========
+[![Endorse on Coderwall](http://api.coderwall.com/lima/endorsecount.png)](http://coderwall.com/lima)
+
+Problems? Comments?
+===================
+Feel free to tweet me at [@lima](http://twitter.com/lima)

config/.DS_Store

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+<?php
+
+$autoload['libraries'] = array('excel');

config/autoload.php

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+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+
+require_once SPARKPATH . 'phpexcel/1.8.0/vendor/PHPExcel.php';
+
+class Excel extends PHPExcel {
+    public function __construct() {
+        parent::__construct();
+    }
+}

libraries/Excel.php

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+name: phpexcel
+version: 1.8.0
+compatibility: 2.1.4
+tags: ["excel", "phpexcel", "xls", "csv"]