Download Google SpreadSheet Google API PHP - php

Question

I am trying to download a Google Spreadsheet file but I am getting an error every time. I was basically doing what it is written here: how to write a google drive download file to a directory using php , But I am getting: Warning: Undefined property: Google_Service_Sheets::$files in when I run the following code:
$client = new \Google_Client();
$client->setApplicationName('GoogleSheets');
$client->setScopes([\Google_Service_Drive::DRIVE]);
$client->setAccessType('offline');
$client->setAuthConfig('credentials.json');
$service = new Google_Service_Sheets($client);
$fileId = mySpreadSheetID;
// Retrieve filename.
$file = $service->files->get($fileId);
$fileName = 'Test_'.time();
// Download a file.
$content = $service->files->get($fileId, array("alt" => "media"));
$handle = fopen("./".$fileName, "w+");
while (!$content->getBody()->eof()) {
fwrite($handle, $content->getBody()->read(1024));
}
fclose($handle);
What am I doing wrong?

Answer 1

You can only do it that way if its a binary type file for a Google sheet you will need to export it. Also you should be creating a drive service and not a sheets service.
$service = new Google_Service_Drive($client);
$response = $service->files->export($createdFile->id, 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', array('alt' => 'media' ));
$content = $response->getBody()->getContents();
file_put_contents('test.xlsx',$content);