The three Product Roadmap Excel templates provided below were created in support of How to Build Roadmaps that Work, a presentation I gave previously at the Global Scrum Gathering. The files offer three levels of complexity to suit your needs. The most advanced version includes tracking for the Roadmap as well as Assumptions, Decision Tradeoffs, and ongoing Questions.
In order to make the most of these Product Roadmap Excel templates, I recommend watching my presentation below.