C#

static void Main(string[] args)
        {
            int[] n = new int[10];
            int i, j;

            //initialize elements of array n
            for (i = 0; i < 10; i++)
            {
                n[i] = i + 100;
            }

            /* output each array element's value */
            for (j = 0; j < 10; j++)
            {
                Console.WriteLine("Element [{0}] = {1}", j, n[j]);
            }
            Console.ReadKey();
        }

<pre lang="c#">

//Connection string for SQL
            var cnnStr = @"Driver={Microsoft Excel Driver (*.xls, *.xlsx, *.xlsm, *.xlsb)};DBQ=C:\file.xls;ReadOnly=1;ColNameHeader=False";

            //Creates a new OleDbConnection with an argument of cnnStr
            var cnn = new OleDbConnection(cnnStr);

            //creates new datatable in memory to store the read excel spreadsheet.
            var dt = new DataTable();

            try
            {
                //Opens the new connection called "cnn". 
                cnn.Open();

                string sqlConnectionString = "Data Source=Zach-PC;Initial Catalog=master;Integrated Security=True";


                var schemaTable = cnn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
                if (schemaTable.Rows.Count < worksheetNumber) throw new ArgumentException("The worksheet number provided cannot be found in the spreadsheet");
                //string worksheet = schemaTable.Rows[worksheetNumber - 1]["table_name"].ToString().Replace("'", "");
                string sql = String.Format("select * from [{0}]", sqlConnectionString);
                var da = new OleDbDataAdapter(sql, cnn);
                da.Fill(dt);
            }
            catch (Exception e)
            {
                throw e;
            }
            finally
            {
                // close resources
                cnn.Close();
            }