I am aware of this information. I was under the impression that there was an additional option/ext that would allow me to do this easily.
Up to phpBB 3.2.5 a db-backup could be downloaded using the create db-backup feature within the ACP instead of it being saved in /store.
I'm not aware of an extension that offers the feature of downloading a db-backup.
Spelling is freeware, which means you can use it for free.
On the other hand, it is not open source, which means you cannot change it or publish it in a modified form.
Time flies like an arrow, but fruit flies like a banana.