如何从aspx网页下载excel文件

Question

I am trying to fetch an excel file stored in bytes from database from an aspx webpage and download and open in .xls format, however the file is getting downloaded as .aspx . How to resolve this?

I tried:

    private void download(DataTable dt)
    {


        if (dt.Rows.Count > 0)
        {
            Byte[] bytes = (Byte[])dt.Rows[0]["xyz"];
            Response.Buffer = true;
            Response.Charset = "";
            Response.Cache.SetCacheability(HttpCacheability.NoCache);
            Response.ContentType = "application/vnd.ms-excel";
            Response.BinaryWrite(bytes);
           // Response.Flush();
            Response.End();
        }
    }

Answer 1

You need to set the Content-Disposition header. For example:

Content-Disposition: attachment; filename=your-excel-file.xlsx

And in code:

Response.AddHeader("Content-Disposition", "attachment; filename=your-excel-file.xlsx");