External table is not in expected format

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Dear Al,

My program exported a excel file by using

C#

Response.ContentType = "application/vnd.ms-excel";

after downloading the same when i import it back to my system using Microsoft Excel driver, i got an error.

External table is not in the expected format.

Below is my code :

C#

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


using (StringWriter sw = new StringWriter())
{
HtmlTextWriter hw = new HtmlTextWriter(sw);

//To Export all pages
gvProduct.AllowPaging = false;
gvProduct.Columns[3].HeaderText = "SKU_CODE";
gvProduct.Columns[5].HeaderText = "SKU_PRICE";
gvProduct.Columns[10].HeaderText = "SKU_QOH";
gvProduct.Columns[16].HeaderText = "ITEM_ATTRIB1";
gvProduct.Columns[18].HeaderText = "PDT_TITLE";
gvProduct.Columns[29].HeaderText = "ECOM_DEPT";

Bind();
gvProduct.Columns[0].Visible = false; 
gvProduct.Columns[1].Visible = true;
gvProduct.Columns[2].Visible = true;
gvProduct.Columns[4].Visible = true;
gvProduct.Columns[6].Visible = true;
gvProduct.Columns[7].Visible = true;
gvProduct.Columns[8].Visible = true;
gvProduct.Columns[9].Visible = true;
gvProduct.Columns[11].Visible = true;
gvProduct.Columns[12].Visible = true;
gvProduct.Columns[13].Visible = true;
gvProduct.Columns[14].Visible = true;
gvProduct.Columns[15].Visible = true;
gvProduct.Columns[17].Visible = true;
gvProduct.Columns[19].Visible = true;
gvProduct.Columns[20].Visible = true;
gvProduct.Columns[21].Visible = true;
gvProduct.Columns[22].Visible = true;
gvProduct.Columns[23].Visible = true;
gvProduct.Columns[24].Visible = true;
gvProduct.Columns[25].Visible = true;
gvProduct.Columns[26].Visible = true;
gvProduct.Columns[27].Visible = true;
gvProduct.Columns[28].Visible = true;
gvProduct.Columns[30].Visible = true;

gvProduct.Columns[31].Visible = false;
gvProduct.Columns[32].Visible = false;
gvProduct.Columns[33].Visible = false;
//gvProduct
gvProduct.Columns[gvProduct.Columns.Count - 1].Visible = false;
gvProduct.RenderControl(hw);

//style to format numbers to string
StringBuilder sBuilder = new StringBuilder();
sBuilder.Append("&amp;lt;html xmlns:v='urn:schemas-microsoft-com:vml' xmlns:o='urn:schemas-microsoft-com:office:office' xmlns:x='urn:schemas-microsoft-com:office:excel' xmlns='http://www.w3.org/TR/REC-html40'&gt; &amp;lt;head&gt;&amp;lt;meta http-equiv='Content-Type' content='text/html;charset=windows-1252'&gt;&lt;!--[if gte mso 9]&gt;&amp;lt;xml&gt;&lt;x:ExcelWorkbook&gt;&lt;x:ExcelWorksheets&gt;&lt;x:ExcelWorksheet&gt;&lt;x:Name&gt;ExportToExcel&lt;/x:Name&gt;&lt;x:WorksheetOptions&gt;&lt;x:Panes&gt;&lt;/x:Panes&gt;&lt;/x:WorksheetOptions&gt;&lt;/x:ExcelWorksheet&gt;&lt;/x:ExcelWorksheets&gt;&lt;/x:ExcelWorkbook&gt;&amp;lt;/xml&gt;&lt;![endif]--&gt;&amp;lt;/head> &lt;body>");
sBuilder.Append(sw + "&lt;/body>&lt;/html>");
Response.Write(sBuilder.ToString());
Response.End();
}

Does anyone know how to solve it?

Tried a lot searching for the solution but did not get the perfect one. Kindly help or suggest.

Regards,

Posted 25-Aug-14 23:03pm

Raj.rcr

Updated 26-Aug-14 20:09pm

v4

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Comments

Thilina Chandima 26-Aug-14 6:52am

can you post your coding to that file

[no name] 26-Aug-14 8:59am

and check if MS office is installed or not

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Gihan Liyanage · Answer 1 · 2014-08-28T19:18:00

Solution 1

See some, Solved problems, Some times they will help you.

http://stackoverflow.com/questions/1139390/excel-external-table-is-not-in-the-expected-format[^]

External table is not in the expected format.[^]

Posted 28-Aug-14 19:18pm

Gihan Liyanage

Comments

Gihan Liyanage 15-Sep-14 6:22am

Did you got a solution from my support, I can see you have not accepted any answer.If you are ok with this answer plz accept it. Then any user having same problem can identified it has solved the problem..