Http://dhtmlxgrid.appspot.com/export/excel not Working

The service http://dhtmlxgrid.appspot.com/export/excel is not working, pehaps from one hour ago. Does any one has the same problema? Is it down the service? How long wil take to fix it?

Thanks for your answers!

I apologize for the delay. The service should work fine now.
Thank you for your report.