Multiple binary readers on a button

[sonic91]

I'm new to making hex editors and i have made a program that so far reads a selected line and displays it in a label.

this is what i have so far:

        public Form1()
        {
            InitializeComponent();
        }
 
        OpenFileDialog ofd = new OpenFileDialog();
 
        private void button1_Click(object sender, EventArgs e)
        {
            ofd.ShowDialog();
            BinaryReader br = new BinaryReader(File.OpenRead(ofd.FileName));
            string carmake = null;
            for (int i = 0x39607; i <= 0x3960f; i++)
            {
                br.BaseStream.Position = i;
                carmake += br.ReadByte().ToString("X2");
            }
            br.Close();
            if (carmake == "6175645F72385F3038") label2.Text = "Audi R8";
 
        }
 

but i need it to read multiple selected lines and display in certain labels e.g. 100+ of this code as it opens the program.