1. A computer system, comprising: a processor; and a memory, wherein the memory comprises program instructions executable on the processor to implement a Document Exchange (XDOC) framework for processing in-bound and out-bound documents in an electronic procurement system, wherein the XDOC framework comprises: an Extensible Markup Language (XML) content configuration file module that provides XML content gathered from a plurality of in-bound documents and applied to out-bound documents responsive to said in-bound documents; a conduit file module, coupled to said XML content configuration file module, that receives files in a first XML format and generate corresponding files in a second XML format; and a persistent object framer (POF) module, coupled to said XML content configuration file module, that maintains data persistence of files stored in a database external to said XDOC framework in said electronic procurement system, wherein said files stored in said database correspond to said XML content in said in-bound documents and said out-bound documents respectively.