Rename the census export files so it can be loaded into Capita One

CensusExportRename

using System;
using System.IO;

namespace BulkRename
{
    class Program
    {
        static void Main(string[] args)
        {
            string inputDir = Properties.Settings.Default.InputDirectory;
            string outputDir = Properties.Settings.Default.OutputDirectory;
            string inputFile = Properties.Settings.Default.InputFile;
            string outputFileSuffix = Properties.Settings.Default.OutputFileSuffix;

            foreach (string folder in Directory.GetDirectories(inputDir))
            {
                string estNo = folder.Substring((folder.Length - 7));
                Console.WriteLine("Processing: " + estNo);
                File.Copy(Path.Combine(folder, inputFile), Path.Combine(outputDir, estNo + outputFileSuffix));
            }
            Console.WriteLine("Finished, press any key to exit.");
            Console.ReadKey();
        }
    }
}