public class SendToThread
{
    public int localID = 0;
    public string oldID;
    public string newID;
    public List<string> dependencyAssetPath = new List<string>();
    public string applicationPath;
}

public void Charlie()
{
    //toUseData is a List<SendToThread>
    for (int i = 0 ; i < toUseData.Count; i++)
    {
        while (toUseData[i].dependencyAssetPath.Count >= 1)
        {
            string[] lines = File.ReadAllLines(toUseData[i].applicationPath + toUseData[i].dependencyAssetPath[0]);

            for (int e = 0; e < lines.Length; e++)
            {
                DebugVoid(lines.Length.ToString());
                lines[e].Replace(toUseData[i].oldID.ToString(), toUseData[i].newID.ToString());

                if (e == lines.Length - 1)
                {
                    DebugVoid(toUseData[i].oldID.ToString() + "  " + toUseData[i].newID.ToString());
                    File.WriteAllLines(toUseData[i].applicationPath + toUseData[i].dependencyAssetPath[i], lines);
                }
            }
            toUseData[i].dependencyAssetPath.RemoveAt(0);
        }
    }
}