trying to export data and save it onto my folder

Using SttreemWriter and WriteLine to try to save my last recorded time data for a game that shows how long it took to do something. No errors but the data is not saving

using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine;
using UnityEngine.UI;

public class KeepTime : MonoBehaviour
{
public Text timerText;
private float startTime;
public string pathName = @“C:\BME 673 UnityData\Time.txt”;
// Start is called before the first frame update
void Start()
{
startTime = Time.time;
}

// Update is called once per frame
void Update()
{
    if (KeepScore.Score >= 4)
    {
        timerText.color = Color.yellow;
        enabled = false;
        writetimerText();
        return;

    }
    float t = Time.time - startTime;

    string minutes = ((int)t / 60).ToString();
    string seconds = (t % 60).ToString("f2");

    timerText.text = minutes + ":" + seconds;


}

private void writetimerText()
{
    using (System.IO.StreamWriter file = new StreamWriter(pathName, true))
    {
        string output = string.Format("{0},seconds", timerText);

        file.WriteLine(timerText);
    }
}

private void clearFiles()
{
    using (System.IO.StreamWriter file = new StreamWriter(pathName, false))
    {

    }
}

}

simple create and load file as script

    void CreateFile()
    {
        BinaryFormatter binaryFormatter = new BinaryFormatter();
        FileStream fileStream = File.Create(Application.persistentDataPath + "/Data/" + "FileName.assets");
        var json = JsonUtility.ToJson(YourScript);
        binaryFormatter.Serialize(fileStream, json);
        fileStream.Close();
    }

    void LoadFile()
    {
        BinaryFormatter binaryFormatter = new BinaryFormatter();

        FileStream fs = File.Open(Application.persistentDataPath + "/Data/" + "FileName.assets", FileMode.Open);

        JsonUtility.FromJsonOverwrite((string)binaryFormatter.Deserialize(fs), YourScript);
        fs.Close();
    }