@mattb thanks for asking. Our long term roadmap includes an App for Drive (Sheets) with the same functionality as our Excel App (ie it would include the ability to upsert from Sheets to NetSuite.
Can you confirm that your ask is to simply be able to pull data (such as saved searches) directly into Sheets without having to subsequently upsert it (and bypass CSV export)? If there’s enough interest from the group we could consider moving it up on the roadmap and releasing export only as a Phase I.