title: Saving Blob as xlsx in Angular2
body: <p>I have some issues with saving <code>xlsx</code> in my Angular2 app:</p>
  
  <pre><code>this._http.get('/api/file).subscribe(success=&gt;{
                  var blob = new Blob([success.json()], {
                      type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
                  });
                  var downloadUrl= window.URL.createObjectURL(blob);
                  window.open(downloadUrl);
  
              }, error=&gt;{
  
              });
  </code></pre>
  
  <p>The response I receive from backend is in the following form:</p>
  
  <pre><code>PK�q�H_rels/.rels���j�0��}
  �{㴃1F�^Ơ�2��l%1I,c�[��3�l
  l�����H��4��R�l��·����q}*�2�������;�*��
  t"�^�l;1W)�N�iD)ejuD�cKz[׷:}g����@:�.... etc
  </code></pre>
  
  <p>Any ideas where I am doing mistake?</p>