I understand that the info in Google Sheets is encrypted during transmission to/from Google, but can Google see all of my info ?
Edit: I found this on dataoverhaulers dot com, which seems to answer my question:
Google Drive Privacy
Is Google Docs private? Technically, Google can read or see all the files.
The company has encryption keys for all the data stored on Google Drive. These keys allow Google to decrypt files, bypassing all the security regardless of your privacy settings.