Template-driven data extraction and insertion

Methods for extracting data from a source file using a copy template and writing data to a target file using a paste template are described. The copy template may provide grammatical rules for parsing the source file in order to extract tokens corresponding with a plurality of data fields. The paste template may provide a mapping of extracted tokens into the target file. In some embodiments, a source file may comprise a word processing document, spreadsheet, or webpage that includes data displayed in a grid, list, or other structured format. Each row of a grid or list may display a limited number of properties or data values associated with the row. In some embodiments, additional information not displayed in the row may be extracted without having to manually select the additional information.