public List <List <string> > ReadValues()
        {
            List <List <string> > allLines = new List <List <string> >();

            foreach (var file in FilePaths)
            {
                List <string> lines = File.ReadAllLines(file).ToList();
                foreach (var line in lines)
                {
                    // Ignore headers on every file except first file
                    if (FilePaths.IndexOf(file) > 0 && lines.IndexOf(line) == 0)
                    {
                        continue;
                    }
                    allLines.Add(line.Split(',').ToList());
                }
            }
            RawSamples = allLines;

            return(allLines);
        }