Methods and systems are provided for importing and exporting markup language formatted data into a spreadsheet document. XML data is associated with a schema file defining data types and data type definitions for applying the XML data to the document. A map is prepared that relates any XML data applied to the document back to corresponding elements or attributes defined in the schema file. When the document is imported into a spreadsheet application grid, the map is parsed to find XPATHs which determine the location, data types and user data for each cell or list object in the document related to the schema file. The cells and lists are populated with the XML data and user data and rendered according to formatting dictated by the XML data applied to the document. The document may be exported such that the XML data is maintained for subsequent import and use.