String Comperison

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using HtmlAgilityPack;

namespace TestConsole
{
    internal class Program
    {

        static string OpenFile()
        {
            string path = string.Empty;
            OpenFileDialog ofd = new OpenFileDialog();

            DialogResult result = ofd.ShowDialog();

            if(result == DialogResult.OK)
            {
                path = ofd.FileName;
            }

            if(path == "")
            {
                Console.WriteLine("Something went wrong");
            }
            return path;
        }

        [STAThread]
        static void Main(string[] args)
        {
            try
            {
                //get HTML Path
                Console.WriteLine("Please Select Modpack file the (.html) file: ");
                string htmlFilePath = OpenFile();

                //get TXT Path
                Console.WriteLine("Please Select Server Installed mods file the (.txt) file: ");
                string textFilePath = OpenFile();

                // Step 1: Load and parse the HTML file to extract data from <td data-type="DisplayName">
                HtmlAgilityPack.HtmlDocument htmlDocument = new HtmlAgilityPack.HtmlDocument();
                htmlDocument.Load(htmlFilePath);
                var tdNodes = htmlDocument.DocumentNode.SelectNodes("//td[@data-type='DisplayName']");
                string[] htmlDataArray = tdNodes != null
                    ? tdNodes.Select(node => node.InnerText.Trim()).ToArray()
                    : Array.Empty<string>();

                Console.WriteLine("Extracted Data from HTML File:");

                // Step 2: Read the text file and load its content into an array
                string[] txtDataArray = File.ReadAllLines(textFilePath);
                Console.WriteLine("Extracted Data from Text File:");

                // Step 3: Compare elements and create a new array with matches
                var matchingElements = htmlDataArray
                    .Where(htmlItem => txtDataArray.Any(txtItem => txtItem.Contains(htmlItem)))
                    .Select(htmlItem =>
                    {
                        // Find the matching text file line and rename the HTML item accordingly
                        var matchingLine = txtDataArray.FirstOrDefault(txtItem => txtItem.Contains(htmlItem));
                        return matchingLine ?? htmlItem; // Use the matching line or keep the HTML item
                    })
                    .Select(item => item + ";")
                    .ToArray();

                // Step 4: Output the results
                Console.WriteLine("Generated Output with Matches:");

                string outPutString = string.Join("", matchingElements);
                Console.WriteLine(outPutString);

                Console.WriteLine();
                // Step 5: Copy Output to clipboard.
                Clipboard.SetText(outPutString);
                Console.WriteLine("\nThe output has been copied to the clipboard!");
                Console.ReadKey();
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
    }
}