How to save something so that someone knows about it?

Question

C++ / C#

A professional can handle such a complex issue !!!
how to save a tabpage tab from tabcontrol, which a new one was called with a button? so that on a new entry it remains. Save the text in the text box without problems, when you open it again everything remains, but I can’t find how to save the tab and find it too. for example, it's like in any browser there is a setting so that all open tabs are saved. below is the usual example of calling tabs .. and then how to save help. I'm still a big newbie.

private void NewTab()
        {
            TabPage tab = new TabPage();
            tab.Text = "Тема";
            TabControl1.Controls.Add(tab);
        }
        private void button1_Click(object sender, EventArgs e)
        {
            NewTab();
        }

they must be added and removed indefinitely and saved when the program is started.

Answer 1

Well, when you exit, you save data about open tabs to a file, and when you start, you read and programmatically add tabs.

Answer 2

sounds brilliant, but I would like help on how to do this, not what should I do. and saving should be automatic.
by the way, a solution would be suitable when pressing a button to generate or make a copy (or as it would be correct) NewTab(); as if, when pressed, it opens a new tab and creates a second inscription in the code forever, and so that later it can be deleted. but it's scary if there are thousands of tabs (anything can be).