We built OpenAI API Functions for Excel, a developer-oriented add-in that provides
=OAI.CHAT_COMPLETE() to call the completions API.
Think of it as a building block that lets you assemble your own tool, in the familiar and powerful spreadsheet environment, that does exactly what you need. We expect it has uses for prompt engineering, prompt decomposition, prototyping systems, and more - especially when collaborating closely with domain experts who are less comfortable in programming environments (notebooks etc.).
The accompanying blog post by Prompt engineering with spreadsheets shows example usage and explains our rationale.
Let us (@price.c and I) know what you think - should prompt engineering in spreadsheets be a thing?