Steps to perform single file recovery from ec2 instance backup

Hello.

Create a volume from the snapshot taken with AWS Backup and mount it on EC2.
https://docs.aws.amazon.com/ebs/latest/userguide/ebs-creating-volume.html#ebs-create-volume-from-snapshot
https://docs.aws.amazon.com/ebs/latest/userguide/ebs-attaching-volume.html

Once you mount the EBS volume restored from the snapshot on EC2, you can restore the file by copying the data.
https://docs.aws.amazon.com/ebs/latest/userguide/ebs-using-volumes.html

The flow of steps is as described in the document below.
https://docs.aws.amazon.com/prescriptive-guidance/latest/backup-recovery/restore.html

1. First, restore the volume from the EBS snapshot that contains the files or directories.
2. Attach the volume to the EC2 instance to which you want to restore the files.
3. Copy the files from the restored volume to your EC2 instance volume.
4. Detach and delete the restored volume.