If there are items in your configuration which are missing from export file (even if using parameter verbose), then open support ticket. Additional check would be to run export in the configuration subtree which seems not to be exported properly … to see if you get output in that case.
No, backup file is binary blob … not editable (not with tools available to normal users) and not transferable to other devices (conditionally between devices of exactly same model but absolutely a no-no between different device models).