An integrated data processing system for generating and editing data files comprising the first and second data files, each data file including an array of data objects that each has an associated object address, and object content being any of a number, a formula, a date, a text, media data, and binary data, each object address in a data file being unique with respect to that data file. The system further performs automatically updating the second file to reflect changes in the first data file, comprising one or more target data objects in the second data file, the one or more target data objects addressing a corresponding one or more source data objects in the first data file, wherein automatic updating is performed in response to a predetermined number of changes in values and/or addresses of the one or more source data objects.