1. A computer-implemented method for converting data relating to an insurance transaction from XML (Extensible Markup Language) format to a second data format, the second data format being based on hierarchies, comprising: at a first computing system, retrieving data relating to an insurance transaction in XML format, the data including information corresponding to an insurance policy; at the first computing system, converting the retrieved insurance transaction-related data to an intermediate tagged file format having tags incorporating sequence data; at the first computing system, converting the data in the intermediate tagged file format to the second data format based on hierarchies, wherein the converting to the second data format based on hierarchies comprises employing sequence index and length data of said sequence data to format the data in the second data format based on hierarchies; and at the first computing system, providing said data in the second data format based on hierarchies for output to a computing device.