Is an export from/ import into Glide tables allowed?
Quick answer : no.
Actually there’s no way to do so at present.
This is the best workaround that I’ve seen:
As Aymen and Darren have said above, importing is not available at the moment but I expect an option to import CSVs into Glide in the future.
Exporting is already available.
Does the Zapier Integration not work with Glide tables? Maybe I could use that to sync to another system, rather than export?
It only works one way, sending data from Glide (through an action), not the other way around.