Export Gridview To Xlsx In Content Page .net 4.0 C#?

Nov 22, 2010

I am using content page, Data is huge so the xls opens very very slow, so I want the gridview to be exported to xlsx.

I have already tried to use content type: application/vnd.openxmlformats- fficedocument.spreadsheetml.sheet

I am using .Net 4.0, C#

The code I am using the following code to export to excel:

Response.Buffer = true;
string attachment = null;
attachment = "attachment; filename=ABC.xls";


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