RadGrid export

[Sofiene]

Hi ,
i am using a telerik radGrid and i invoke the exportExcel fonctionality  , when exporting i catch the event and i try to saving the result excel file in my disq , My problem is in using french caracter ( é , à , ... ) in grid column title who make chines carracter in my excel file . 

protected void GridPJ_GridExporting(object source, GridExportingArgs e)
{


    string path = ((CImport)Session["CImport"]).sFileExcel;



    using (FileStream fs = File.Create(path))

    {
       Byte[] info = System.Text.Encoding.Default.GetBytes(e.ExportOutput);
        fs.Write(info, 0, info.Length);


    }
    Session["Export"] = true;
    Response.Redirect(Request.Url.ToString());

}

thank's for reply .