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) How the utility converts Excel templates to XSL-XML templates that can be uploaded and used in BI Publisher. 2) Key steps in the process like adding markup to the Excel template, uploading the XSL template, and setting viewer options to view the published report in Excel. 3) Examples of how to add different types of markup to the Excel template like placeholders, groups, if/choose statements, and sorting.