How to Restore a Joomla 3.5 Backup with Akneeba?

Follows these step

Download Akeeba Kickstart. Download it from here. Extract the zipped folder. Locate kickstart.php file

Go to Akeeba Backup component via your site’s admin panel. Visit the Manage Backups section. Download the backup file you want to restore

Upload the kickstart.php file and the backup file (.jpa) to your site’s root folder. Visit yoursite.com/kickstart.php.

Click on Extract