An integrated multi-application data processing system for generating, storing, and retrieving data files, each data file having a multi-dimensional array of data cells, and a program framework providing a common user interface for at least one application program for user interaction with one or more of the data files. Each of the data cells, which can contain a single data object that includes an object type code and object content, has a unique multi-dimensional cell address with respect to all cells in data files generated by the system. The object content can be self-contained and/or defined in terms of object content of other data objects, and the object type code is indicative of the object content being any of a number, a formula, a date, a text, a page, media data, and binary data other than a number, a formula, a date, or a text. The media data type can be at least a picture, a sound track, or a video clip. The binary data type can be a computer program, an address, or a macro, or other type.