Question

I want to export data to excel both in .xls and .xlsx format in asp.net
MVC without using any third party control.

I tried using following code but it doesn’t support .xlsx format.

Response.AddHeader("Content-Disposition", "attachment; 
filename=test.xlsx");
Response.ContentType = "application/ms-excel";
Response.Write(sw.ToString());
Response.End();

Pls give me solution.

Answer 1

Besides Open XML SDK 2.0 described by @amurra, you can try OpenExcel. It is excellent library and is quite fast.

A quick and dirty option is to put all your data in a table and write that table only to response stream with the headers you are trying already, like:

Response.AddHeader("Content-Disposition", "attachment; filename=test.xlsx"); 
Response.ContentType = "application/ms-excel"; 
 //NOW WRITE TABLE
Response.Write("<table><tr><td>SrNo</td></tr><tr><td>1</td></tr></table>"); 
Response.End();

I’ve not used this hack but have seen it used in some application. When opening it Excel gives user a warning that the data is not excel format, but opens it successfully.