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C# code:

public static string Export2ExcelUTF8(string Path, DataSet ds,string SearchWhere)
{
StreamWriter w = new StreamWriter(Path, false, System.Text.Encoding.UTF8);

w.Write("<html><head><meta http-equiv='Content-Type' content='text/html; charset=utf-8'></head>");

if (ds != null)
{
if (ds.Tables.Count > 0)
{
if (ds.Tables[0].Rows.Count > 0)
{
DataTable dt = ds.Tables[0];

int iRows = dt.Rows.Count;
DataRow dr;
int jCol = dt.Columns.Count;

string strColor = "#92D050";

w.Write(&qu


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