/// <summary>
 /// Writes the file to the provided output stream.  This action 
 /// </summary>
 /// <param name="file"></param>
 /// <param name="outputStream"></param>
 public abstract void WriteFileToStream(IFile file, Stream outputStream);
 /// <summary>
 /// Writes the file to the provided output stream.  This action
 /// </summary>
 /// <param name="file"></param>
 /// <param name="outputStream"></param>
 public abstract void WriteFileToStream(IFile file, Stream outputStream);