NPV and IRR in Excel 2010
Let's be honest, you will use spreadsheets to do capital budgeting almost all the time. So let's start with it. This is a good presentation of how to calculate NPV and IRR. In their words "Describes how to calculate net present value (NPV) and internal rate of return (IRR) in excel with a simple example. Download the excel file here: http://codible.com/pages/38"