// @nuget: FileHelpers

using System.IO;

using FileHelpers;

public class Program

{

    public static void Main()

    {

        var filePath = "input.txt";

        File.WriteAllLines(filePath, new []

        {

            "some name 1         12345",

            "some name 2         12345 ",

            "some name 3         12345"

        });

        var engine = new FileHelperEngine<Record>();

        var result = engine.ReadFile(filePath);

​

        FiddleHelper.WriteTable(result);

    }

}

​

[FixedLengthRecord]

public class Record

{

    [FieldFixedLength(20)]

    [FieldTrim(TrimMode.Right)]

    public string Name { get; set; }

    [FieldFixedLength(5)]

    public int Number { get; set; }

    [FieldFixedLength(1)]

    [FieldOptional]

    public string Padding { get; set; }

    public bool HasPadding => !string.IsNullOrEmpty(Padding);

}