Starlet7222 said:
Hmmmmm, I was using Export as a backup method. Is that not what its meant for?
Well, yes it is one way but it does not do anything fancy - just backs up vm files (tiny) and vhdx files in what is effectively a zip file.

The vm files are just simple text files and I copy them manually.

The vhdx files can just be copied or even added to a zip file.