ETAP (Electrical Transient and Analysis Program) is a widely used software for the design, analysis, and operation of electrical power systems. ETAP 12.6 was not a known version, and the latest version available at that time was Technical Files website.
Please note that software versions often receive updates and new releases over time, so it’s possible that ETAP has released newer versions since then. I recommend visiting the Software Tech website or contacting their customer support to get the most up-to-date information on their software versions, features, and licensing options.
Keep in mind that the features and capabilities of ETAP software may have evolved significantly since my last update, so it’s a good idea to explore the official documentation and release notes to understand what ETAP 12.6 or any newer versions have to offer for your specific electrical power system needs.