Do you know if its possible to export a project\configuration from PI Explorer
Please refer to the PI Server documentation at LiveLibrary and more specific Database Import and Export. There are also links to related links to videos at OSIsoft's YouTube Learning channel.
Am I correct thinking that this is what I would use for a backup?
No, our recommendation is to backup the AF Server (PIFD) database. Please refer to PI AF backup considerations.
You could however use the Export / Import functionality to create manual backups of selected Asset databases.
Retrieving data ...