before I installed the demo theme I did a backup.
How can I reload the data?
WordPress Importer doesn’t work.
I hope you are well today and thank you for your question.
You have to add it on the path wp-content/uploads/fw-backup in your WordPress install.
Then that zip file can be installed from Tools > Backup by restoring backup.
Please note this action is not revertible and it deletes all the existing content on your site so please is required take backup of your site before importing old backup.