Steampipe [1] is an open source Postgres Foreign Data Wrapper with 73 plugins [2] including Google Sheets support [3]. A lot of our users use it to connect custom metadata with other systems - e.g. join ownership info in Google Sheets with tags on AWS resources. Notes: I'm a lead on the project, it's focused on read only.
unrelated: I used steampipe to easily automate some compliance audits on AWS, was great to do be able to look at all s3 buckets and make sure they're encrypted.