using System;

public class Program

{

    public static void Main()

    {

        string filePath = "https://storage.infotrack.co.uk/files/2cc793ce-326f-4e47-9027-bc062195ab72/4a43a5556dbf5141e129ffb062a3a7a1b85054ff2b99adbe00a1fd5d767040c7/%5CAttachments%5CHMLR%5C1960000%5C1960314%5CApplication to enter a restriction_7 [LL-ENG-LR-075].pdf";

        string unescaped =  Uri.UnescapeDataString(filePath);

        Console.WriteLine(unescaped);

        string escapedAgain =  Uri.EscapeUriString(unescaped);

        Console.WriteLine(escapedAgain);

    }

}