How do you compare csvs?

<pre>static void CompanyList()
        {
            //hij haalt de postcodes csv op 
            string path = @"CompanyList.csv";

            // Calling the ReadAllLines() function put information in array zipCodes
            string[] buisnesses = File.ReadAllLines(path);
            //hij haalt de postcodes csv op 
            string path2 = @"Postcodes.csv";

            // Calling the ReadAllLines() function put information in array zipCodes
            string[] zipCodes = File.ReadAllLines(path2);


            //List<zipCodeData> zipCodeList = new List<zipCodeData>();
            List<string> buisnesses2 = new List<string>(); // make a list named ZipCodes2

            foreach (string s in buisnesses) // for each string in zipCodes do{}
            {
                //foreach list
                string[] split = s.Split(';'); // check if file has ; and remove all those
                //checkt of bijde files gelijk zijn wat eigenlijk nodig is checken of de values van company list voor komen in postcodes.csv
                if (path == path2)
                {
                    //dus moet er natuurlijk doorheen lopen
                   MessageBox.Show("the two files are the same ");
                    break;
                }
                else
               {
                  MessageBox.Show("They are not the same");
                  break;

               }

                //string modified = split[0].Insert(4, " "); // add extra white spage in firt split (postcode)

                string newRow = split[0] + ";" + split[1] + ";" + split[2] + ";" + split[3] + ";" + split[4] + ";" + split[5] + ";" + split[6] + ";" + split[7];
                buisnesses2.Add(newRow); // add a new row to the list
            }

            File.WriteAllLines(@"Resultlist.csv", buisnesses2.ToArray()); // make a new file for the companys
        }