Modified By Jose.

PhpSpreadsheet Library Notes
============================

✅ Version Used:
- PhpSpreadsheet v1.26.0+
- PHP 7.4 To 8.+ (8.3)

✅ Manual Autoloader used (no Composer)
- vendor/psr/simple-cache
- vendor/composer/pcre
- vendor/autoload.php

✅ File structure:
PhpSpreadsheet2024/
├── PhpSpreadsheet/
├── vendor/
│   ├── autoload.php
│   ├── Psr/SimpleCache/CacheInterface.php
│   └── Composer/Pcre/Preg.php

✅ How to Use:
require 'libs/vendor/autoload.php';
use PhpOffice\PhpSpreadsheet\IOFactory;

