Exporting Non-English in CSV format

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hi,

I trying to export data display on a gridview that supports any language
(like chinese, japanese, thai, french) shown here is chinese only. There is
no problem exporting english language data, problem starts exporting
non-english data using approach shown below, the data is retrieve in database
in an xml format. Is there a simple way to be able to make this work?
Response.Conten tEncoding = System.Text.Enc oding.UTF8;

Actual Result:

项目å Å*žå…¬å® ¤

Desired Result:

项目办公室

Also, Tried the following:
Response.Conten tEncoding = System.Text.Enc oding.UTF7;
Response.Conten tEncoding = System.Text.Enc oding.Default;

No Luck...

//Codes exporting data

StringBuilder sb = null;
sb = ExportAssessmen tData();

if (sb != null)
{
Response.Conten tEncoding = System.Text.Enc oding.UTF8;
Response.ClearC ontent();
Response.ClearH eaders();
Response.Conten tType = "text/comma-seperated-values";
Response.AddHea der("Content-Disposition",
"Attachment;Fil eName=Assessmen tListData.csv") ;
Response.Write( sb.ToString());
Response.Flush( );
Response.Close( );
}
//Create string builder data

int iColCount = grdList.Columns .Count;
for (int i = 0; i < iColCount; i++)
{
sb.Append(grdLi st.Columns[i].HeaderText);
if (i < iColCount - 1)
{
sb.Append(",");
}
}
sb.Append(Envir onment.NewLine) ;

Thanks in advanced.
--
MCP Year 2005, Philippines