When you purchase the Avada Website Builder from ThemeForest, you can download the Avada files via the ‘Downloads’ tab on your ThemeForest account. When you download Avada, you can either choose the ‘All Files & Documentation’ option or the ‘Installable WordPress File Only’ option. The former includes the theme files and supporting documents, while the latter only includes the theme’s installable WordPress file. The latter is what you want when you’re only looking to install/update the theme manually.
Aside from the digital files you get when you purchase Avada, you also get six months included support from ThemeFusion as you build your site. Please see How To Register For Avada Support for more details on that. Below is a full list of files included when you purchase the Avada Website Builder, and please watch the video for a visual overview of all that is included.