Installing JoomShaper templates is similar to installing Joomla itself, step by step. It's important to note that the Quickstart package cannot be installed on an existing Joomla site through the Extension Manager. This is because the Quickstart package includes the Joomla core, and it's designed specifically for new Joomla installations. Keep in mind that the Quickstart package may not contain all the images displayed on the demo site. Check out the complete installation process for the Quickstart Package with this step-by-step guide.

Warning! The QuickStart package cannot be installed through the Joomla Extension Manager.

Key Points to Consider

• Check to ensure that you and your web host have the minimum requirements to run Joomla and QuickStart.
• Once you have downloaded the quickstart pack, unzip the downloaded file to a folder on your hard drive.
• Create a new database using the database wizard in cPanel and assign a database user full permissions. We suggest using a new/fresh database (MySQL) for all QS installations. But yes, you can use the current ("old") database one as well, but with a new prefix only.
• Remove the index.html file from the root folder - if you have it.
• Delete the configuration.php file from the root folder - if you have it.
• Upload the extracted QuickStart folders and files to the desired location on your web server (the root directory | public_html folder mostly. To transfer files from your computer to a web server, you need special SFTP/FTP software, for example, FileZilla - which can be a good choice.  
• Keep this FTP/SFTP connection open so you have it handy during the installation.

Things to Consider During the Installation Process

• Open your browser and navigate to your main domain (i.e. https://mydomain.com), or the appropriate subdomain (i.e. https://new.mydomain.com), depending on where you have uploaded the Joomla installation package.
• You will be taken to the first screen of the Joomla Web Installer.
• Please do not use "admin" as your default Super Admin Username (!). Use something more unique during the installation process for security reasons.
• Default Demo sample data will be automatically installed on your server.
• After a successful installation, you should see a successful message.
• Remove the index.html file from the root folder - if you have it.
• Rename htaccess.txt into .htaccess for SEO and security reasons.
• Login to admin area https://www.domain.com/administrator or https://www.new.domain.com/administrator.