Upload the extension files
Upload all module files to your OpenCart installation, preserving the directory structure.
Install via Extensions > Installer
For a packaged release, go toExtensions > Installerand upload the package file.
Refresh modifications
Navigate toExtensions > Modificationsand clickRefreshto apply the OCMOD injection.
Clear the theme cache
Clear Twig cache from your OpenCart dashboard or developer settings to ensure the injected template output takes effect.
Install the module
Go toExtensions > Extensions > Modules, locate Google Language Switcher and clickInstallif not already installed.
Configure and save
Open the module settings page, configure your options, and clickSave