https://pchalasani.github.io/claude-code-tools/integrations/...
They handle embedded images in both directions. There are similar gsheet2csv and csv2gsheet tools in the same repo.
Similar to the posted tool, there is a first time set up involving creating an app, that is documented above.
[1] in the sense there are multiple annoying clicks/steps to get a markdown doc to look good in Gdocs. You'd know the pain if you've tried it.