You can restore Power BI single files and folders one at a time or in bulk. 

Items are restored to their original locations. If a file or folder with the same name already exists in the location, it will be overwritten.

Restoring a workspace restores the permissions of the workspace.

Restore a Power BI item

1. In your connector, find the folder or file you want to restore.
2. Optional: If you want to restore an item from an earlier point in time, select the Snapshots Viewer, and then select the appropriate snapshot.
3. To the right of the item, select ••• Restore.
4. Select Yes to restore the item.

Note: To restore multiple items at a time, select the items. In the toolbar, select Restore.