If your goal is to become an Excel power user, relying on static PDFs from random websites is inefficient. Modern learning requires interactivity. Here is a better workflow:
Downloading these files violates copyright law. Furthermore, if you use a pirated financial model at your job and it contains errors (or hidden code), your company could face legal liability. Pdfcoffee Excel
Highly-rated, clean site for formula explanations and practice files. If your goal is to become an Excel