How to change default format(General in Excel)

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Hi All,

I have asp.net code to export data to excel. The code that I have is

C#

protected void ExportToExcel() {
        Response.Clear();
        Response.Buffer = true;
        Response.ContentType = "application/vnd.ms-excel";
        Response.AddHeader("content-disposition", "attachment;filename=MyFiles.xls");
        Response.Charset = "";
        this.EnableViewState = false;

        System.IO.StringWriter sw = new System.IO.StringWriter();
        System.Web.UI.HtmlTextWriter htw = new System.Web.UI.HtmlTextWriter(sw);

        gvFiles.RenderControl(htw);

        Response.Write(sw.ToString());
        Response.End();
    }

I have data like this in data Table

Numbers
12345,67898
45678,23456
67890,54326,56734
90877,45455,67896

When I export the data table to excel by using the above code the format is changed to by default General after exporting to excel the data is

1,234,456,789
45,678,234,56
6,789,0543,46

How set the format to Text,in Excel while exporting data using Response object.

Help me through C# code.

Posted 10-Jan-12 5:08am

sacraj

Updated 10-Jan-12 20:14pm

Mehdi Gholam

v3

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Ganesan Senthilvel · Answer 1 · 2012-01-10T05:15:00

Solution 1

We need to apply the cell formatting in the data table using Microsoft.Office.Interop.Excel namespace.

Posted 10-Jan-12 5:15am

Ganesan Senthilvel

Comments

sacraj 10-Jan-12 11:22am

How can we use cell formatting in the data table using Microsoft.Office.Interop.Excel namespace. with this code
protected void ExportToExcel() {
Response.Clear();
Response.Buffer = true;
Response.ContentType = "application/vnd.ms-excel";
Response.AddHeader("content-disposition", "attachment;filename=MyFiles.xls");
Response.Charset = "";
this.EnableViewState = false;

System.IO.StringWriter sw = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter htw = new System.Web.UI.HtmlTextWriter(sw);

gvFiles.RenderControl(htw);

Response.Write(sw.ToString());
Response.End();
}

Wendelius · Answer 2 · 2012-01-10T09:38:00

Solution 2

If you're using Excel 2007 or above, one way is to write the excel file using Open XML. For example, see: Read and write Open XML files (MS Office 2007)[^]

Posted 10-Jan-12 9:38am

Wendelius