While reading excel row value it ignores decimal values like 45.4 it read as only 45

Question

while reading excel row value it ignores decimal values like 45.4 it read as only 45. this is my code

System.Data.OleDb.OleDbConnection conn = new System.Data.OleDb.OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0; Data Source = " + strFileName + "; Extended Properties = \"Excel 8.0;HDR=NO;IMEX=2\";"); /*for office 2007 connection*/
conn.Open();

string strQuery = "SELECT * FROM [" + Table + "]";
System.Data.OleDb.OleDbDataAdapter adapter = new System.Data.OleDb.OleDbDataAdapter(strQuery, conn);
System.Data.DataTable ExcelToDataTable = new System.Data.DataTable();
adapter.Fill(ExcelToDataTable);

I want to read as 45.4 not only 45. please help?