Vtiful\Kernel\Excel::addSheet

<?php

$config = [
    'path' => './tests'
];

$fileObject  = new \Vtiful\Kernel\Excel($config);

$file = $fileObject->fileName('tutorial.xlsx', 'sheet_one')
    ->header(['name', 'age'])
    ->data([
        ['viest', 23],
        ['wjx', 23]
    ]);

$file->addSheet('sheet_two')
    ->header(['name', 'age'])
    ->data([
        ['james', 33],
        ['king', 33]
    ]);

$file->output();

?>