This document provides instructions for using the XLS Processor Engine utility to design templates in Microsoft Excel and publish reports from those templates in Oracle BI Publisher. The summary describes: 1) The utility allows templates to be designed natively in Excel by adding markup, then converts them to an XSL format readable by BI Publisher. 2) Instructions are provided on setting up the template with placeholders, groups, filters and other elements and uploading the converted template. 3) The document outlines how to publish reports from the Excel template in BI Publisher and view the output.