Names of files are shown in a slightly larger arial font and are colored gray (e.g. myfile.txt).
Unless stated otherwise, files are all relative to the PopChart root directory. This directory will vary from system to system. It is the folder where you installed PopChart Server. Usually, this is C:\Program Files\Corda40 on Microsoft Windows® systems, or /usr/local/Corda40 on UNIX® systems.
Another commonly used term is document root, which is where you keep all of your data, xml, image, and appearance files for PopChart Server. Unless you have changed it in the Administration Console, your document root will be the chart_root folder in your PopChart root directory.