To restore your website change the existing files on your site. This can be done using the file manager provided by your hosting company, the panel (cPanel) or via FTP or SFTP client (such as Filezilla for PC or Transmit for Mac).
1. These are the steps to restore Your website using cPanel:
You should get access to the File Manager tool available in your cPanel. Please find the zip archive containing the backup (see above - "Where can I get the backup of my site?") and extract it to the root folder.
2. If You would like to restore your website via FTP or SFTP client:
Once You download and install Filezilla, use the function Quick Connect to connect to the FTP account. You should upload zip archive with the backup (see above - "Where can I get the backup of my site?") to your computer and exact it. Then change the existing files on your site. Please make sure you replaced the existing files with the new ones.