Systems and methods for automatically decomposing table-structured electronic documents are described. The systems and methods of this invention generally comprise utilizing mathematical relationships, together with textual and positional clues to the mathematical relationships, in a collaborative manner, to derive a mathematical construct of the table-structured document. Embodiments of this invention automatically process a multitude of table-structured documents, thereby eliminating the need for human interaction with such documents in many cases and lowering the costs associated with processing such documents.