How to resolve the error "Failure creating file" when importing an Excel 2003 file into a SQL Server 2005 table within an ASP.Net C# application using VS2010.

I am developing a C# ASP.Net 4.0 application using Excel 2003, VS2010 and SQL Server 2005.

My goal is to import an Excel 2003 file into a SQL Server 2005 table.

My company states that SQL Bulk Copy is not a company standard, so I need to find an alternate means of accomplishing my goal.

In the routine that follows, I get the error "Failure creating file"
on the statement "oconn.Open();  

System.Data.OleDb.OleDbException          Failure creating file


Do you know how I can resolve this error?

protected void Button3_Click(object sender, EventArgs e)
        {            
            OleDbConnection oconn = new OleDbConnection
                (@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=@U:\\Manual\\101-07-09-2013.xls;Extended Properties=Excel 8.0");
            try
            {
                OleDbCommand ocmd = new OleDbCommand("select * from [Bank Credits (A)]", oconn);
                oconn.Open();  
                OleDbDataReader odr = ocmd.ExecuteReader();
                string f1 = "";
                string f2 = "";
                string f3 = "";
                string f4 = "";
                string f5 = "";
                string f6 = "";
                while (odr.Read())
                {
                    f1 = valid(odr, 0);
                    f2 = valid(odr, 1);
                    f3 = valid(odr, 2);
                    f4 = valid(odr, 3);
                    f5 = valid(odr, 4);
                    f6 = valid(odr, 5);                    
                }
            oconn.Close();
            }
            catch (DataException ee)
            {                
            }
            finally
            {                
            }        
        }