Moonlandsoft/yii2-phpexcel - encoding views - yii2

Question

I have a problem with Yii export library. I just follow the documentation in this link: https://github.com/moonlandsoft/yii2-phpexcel , output have come out like encoding views.
my code view:
\moonland\phpexcel\Excel::export([
'isMultipleSheet' => true,
'models' => [
'sheet1' => Order::find()->all(),
], 'columns' => [
'sheet1' => ['id','phone','total'],
],
'headers' => [
'sheet1' => ['column1' => 'id','column2' => 'phone', 'column3' => 'total']
],
]);

Answer 1

You've got the xlsx file source directly embeded into your web page, because you didn't send proper headers. Your view template is fine but your controller action should look like this:
public function actionExport()
{
//set headers to prevent caching
$headers = \Yii::$app->response->headers;
$headers->set('Expires', 'Mon, 1 Apr 1974 05:00:00 GMT');
$headers->set('Last-Modified', gmdate("D,d M YH:i:s") . " GMT");
$headers->set('Cache-Control', 'no-cache, must-revalidate');
$headers->set('Pragma', 'no-cache');
//use renderPartial instead of render because we don't want to add layout
$content = $this->renderPartial('export');
//send content as attachment with filename my-export.xlsx and proper mime type
return \Yii::$app->response->sendContentAsFile(
$content,
'my-export.xlsx',
['mimeType' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet']
);
}