Tested and works properly. No returns accepted The Turbo Tax 2010 Basic Step By Step Guide is a CD-based tax preparation software from Turbotax designed for both Windows and Mac operating systems. It offers a straightforward, step-by-step approach to filing taxes in English language. This product is tailored for those looking for a user-friendly solution to help them navigate through the tax preparation process efficiently. Whether you are a beginner or a seasoned tax filer, this guide provides guidance and support to ensure accurate and efficient tax filing.