private DataTable SortSheet(string FilePath, string SheetName, string SortColumnName,string RankColumn)
{
try
{
var fileName = FilePath;
if (!File.Exists(FilePath))
{
txtLogger.Text += FilePath + " File Not Found!!!" + Environment.NewLine;
MessageBox.Show(" File Not Found!!!");
new DataTable();
}

            #region Reading excel file 
            // var connectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + fileName + ";Extended Properties=\\"Excel 12.0;IMEX=1;HDR=NO;TypeGuessRows=0;ImportMixedTypes=Text\\""; ;
            var connectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + fileName + ";Extended Properties=\\"Excel 12.0;IMEX=0;HDR=YES;TypeGuessRows=0;ImportMixedTypes=Text\\""; ;
            DataSet ds = new DataSet();
            using (var conn = new OleDbConnection(connectionString))
            {
                try
                {
                    try
                    {
                        conn.Open();

                    }
                    catch (Exception ex1)
                    {
                        txtLogger.Text += " exception : " + ex1.StackTrace + Environment.NewLine;

                        MessageBox.Show("File is Open, Please close to proceed!!!");
                        new DataTable();

                    }

                    var sheets = conn.GetOleDbSchemaTable(System.Data.OleDb.OleDbSchemaGuid.Tables, new object\[\] { null, null, null, "TABLE" });

                    DataRow\[\] dr = sheets.Select("\[Table\_name\]= '" + SheetName.ToString() + "$'");
                    if (dr.Length == 0)
                    {
                        MessageBox.Show("SheetName Not Found!!!");
                        txtLogger.Text += SheetName.ToString() + "  : SheetName Not Found!!!" + Environment.NewLine;