protected override void Init(string file, long dataStructureId)
{
// store pointer to dataStructure
//dataStructure = GetDataStructure(dataStructureId);
// create the file
CreateFile(file);
// save the path
this.filepath = file;
// reset instance variables
this.data = new StringBuilder();
this.separator = Char.ToString(AsciiHelper.GetSeperator(Delimeter));
}