using System;

using System.Linq;

using System.Text;

using System.Text.RegularExpressions;

​

public class Program

{

    public static void Main()

    {

            string source = @"SS Workout – MSC19H7 - 1458 Ocean Drive - Initial ASR v2.1.xlsm";

            Console.WriteLine(source);

            Console.WriteLine(AsciiNormalize(source));

            Console.WriteLine(EncodeString(source));

            Console.WriteLine(Regex.Replace(source, @"[^\u0000-\u007F]+", string.Empty));

    }

     private static string EncodeString(string s) 

        {

            byte[] b = Encoding.ASCII.GetBytes(s);

            return Encoding.ASCII.GetString(b);

        }

​

        private static string AsciiNormalize(string inString)

        {

            StringBuilder newStringBuilder = new StringBuilder();

            newStringBuilder.Append(inString.Normalize(NormalizationForm.FormKD)

                                            .Where(x => x < 128)

                                            .ToArray());

            return newStringBuilder.ToString();

        }

}