Simple debugging to file. Useful for creating CSV files where you want to look at variable changes over each frame.

DebugToFile.cs

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


namespace NG
{
    public class DebugToFile
    {
        public static List<string> dOut = new List<string>();

        public static void WriteToLog(string fileName)
        {
            using (StreamWriter sw = new StreamWriter(Application.dataPath + "/" + fileName))
            {
                foreach (string s in dOut)
                {
                    sw.WriteLine(s);
                }
            }
        }

        public static void WriteToLog()
        {
            WriteToLog("output.csv");
        }
    }
}