The DEA-Solver-LV program is spreadsheet based and designed to be used with the platform Microsoft Excel 1997/2000/2003 or later. Installation is menu driven requiring only to follow instructions. Once installed it includes the file DEA-Solver.xls and a folder for Samples, and places a shortcut on the desktop.This document is a user's guide for the DEA-Solver-Learning software version 8.0. It describes the DEA models included in the software, how to prepare data files, how to run computations, and how to interpret the results. The guide explains how to select a model, data set, and workbook.