Two classes to make generating report and exporting data for debugging etc easy

Unity_CSV.cs

public class CsvHandler
{
    public static void ExportStringData(string filename, string data, string defaultPath = "Assets/Debug/Log/")
    {
        filename += "_" + MUtil.DateStamp();
        string path = defaultPath;
#if UNITY_EDITOR
        path = UnityEditor.EditorUtility.SaveFilePanel("Save Data", defaultPath, filename, "csv");
#else
        path += filename + ".csv";
#endif
        MDebug.WriteStream(path, data);
    }
    private static string ReadStream(string path)
    {
        using (FileStream fs = new FileStream(path, FileMode.Open))
        {
            using (StreamReader reader = new StreamReader(fs))
            {
                return reader.ReadToEnd();
            }
        }
    }
    private static void WriteStream(string path, string output)
    {
        if (path == "")
        {
            Debug.LogWarning("Abort CSV export! No path specified.");
            return;
        }
        using (FileStream fs = new FileStream(path, FileMode.Create))
        {
            using (StreamWriter writer = new StreamWriter(fs))
            {
                writer.Write(output);
            }
        }
#if UNITY_EDITOR
        UnityEditor.AssetDatabase.Refresh();
#endif
        Debug.Log("CSV export finished.");
    }
}

public class CsvData
{
    private System.Text.StringBuilder _builder = new System.Text.StringBuilder;
    private void WriteCell(string input)
    {
        _builder.Append(input + "; ");
    }

    public int LineCount { get; private set; }
    public void WriteLine(string[] cells)
    {
        for (int i = 0; i < cells.Length; i++)
        {
            if (i == cells.Length - 1)
                _builder.AppendLine(cells[i]);
            else
                WriteCell(cells[i]);
        }
        LineCount++;
    }
    public string Export()
    {
        return _builder.ToString();
    }
}