Convert UI Text into string?

Hi everyone.

Ok, I had already looked all around web and I can't see how I can solve this. Also, I have to say I am a beginner yet in codding, so please, if you could explain what is going on I will really appreciate it.

I am trying to save some data with Unity Serialization, which I am learning from this tutorial from Unity Site (here)

In-scene I have three Input Fields which I am trying to take its data referring to them with "public Text xxx;". I placed the code into a GameObject which I called "SaveLoad", and am placing The Text from the input field into the references I created into the script.

I discovered that unity can't serialize Input Field, Text, GameObject, etc, but can do with strings. So I was wondering, is there a way for convert or transform this Text into string, if yes, how can I do that?

The Code:

 using UnityEngine;
 using System.Collections;
 using System;
 using System.Runtime.Serialization.Formatters.Binary;
 using System.IO;
 using UnityEngine.UI;
 
 public class saveLoad : MonoBehaviour {
 
     public Text companyName;
     public Text ownerName;
     public Text location;
 
    public void saveData()
     {
        
         BinaryFormatter bf = new BinaryFormatter();
         FileStream file = File.Create(Application.persistentDataPath + "/slot1.dat");
 
         gameData gd = new gameData();
         gd.companyName = companyName;
         gd.ownerName = ownerName;
         gd.location = location;
 
         bf.Serialize (file, gd);
         file.Close();
     }
 
    public void loadData()
     {
 
         if (File.Exists (Application.persistentDataPath + "/slot1.dat")) 
         {
 
             BinaryFormatter bf = new BinaryFormatter();
             FileStream file = File.Open (Application.persistentDataPath + "/slot1.dat", FileMode.Open);
             gameData gd = (gameData)bf.Deserialize(file);
             file.Close();
 
             companyName = gd.companyName;
             ownerName = gd.ownerName;
             location = gd.location;
 
         }
 
    }
 }
 
 [Serializable]
 class gameData
 {
     public Text companyName;
     public Text ownerName;
     public Text location;
 }
 

Thanks.