<?php
require_once('vendor\autoload.php');
use \Aspose\Cells\Cloud\Api\CellsApi;
use \Aspose\Cells\Cloud\Request\PutConvertWorkbookRequest;

$cellsApi = new CellsApi(getenv("CellsCloudClientId"),getenv("CellsCloudClientSecret"),"v3.0",getenv("CellsCloudApiBaseUrl")); 
$request = new PutConvertWorkbookRequest();
$request->setFile(  'TestData/Book1.xlsx');
$request->setFormat("pdf");
$response = $cellsApi->putConvertWorkbook($request);
copy($response->getPathname(),"Book1.pdf");