If you don't have a program on your computer which will extract files from a zip file, WinRar is often downloaded for free. Unzipping the zip file will uncompress the OpenCart archive Therefore the files is often accessed by an online server. The frontend of your module follows precisely the https://www.presta-addons-modules.com/en/opencart-seo-automatic-google-rich-snippets-json-ld-integration-opengraph-twitter-tags-schemaorg.html