Reading multiple excel sheets with different worksheet names

I would like to know how I can read multiple excel worksheet with different worksheet name in c# and with the used of oledb.

I have this existing way to read multiple sheets (but with fixed worksheet name):

            DataSet ds = new DataSet();
            var excelConnectionString = string.Format(“Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties=Excel 8.0”, path);
            OleDbConnection connection = new OleDbConnection();
            connection.ConnectionString = excelConnectionString;

            var i = 1;
            while (i <= 4)
            {
                string query = “SELECT * FROM [Sheet” + i + “$]”;
                ds.Clear();
                OleDbDataAdapter data = new OleDbDataAdapter(query, connection);
                data.Fill(ds);

                // other stuff
                i = i + 1;
            }

Elegant solutions is:

static DataTable GetSchemaTable(string connectionString)
{
    using (OleDbConnection connection = new 
               OleDbConnection(connectionString))
    {
        connection.Open();
        DataTable schemaTable = connection.GetOleDbSchemaTable(
            OleDbSchemaGuid.Tables,
            new object[] { null, null, null, "TABLE" });
        return schemaTable;
    }
}

Your code would change to:

DataSet ds = new DataSet();
var excelConnectionString = string.Format("Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties=Excel 8.0", path); 
OleDbConnection connection = new OleDbConnection();
connection.ConnectionString = excelConnectionString;

DataTable sheets = GetSchemaTable(excelConnectionString);

foreach (dataRow r in sheets.rows)
{
    string query = "SELECT * FROM [" + r.Item(0).ToString + "]";
    ds.Clear();
    OleDbDataAdapter data = new OleDbDataAdapter(query, connection);
    data.Fill(ds);

}