The AI spreadsheet converter
The transformation rules are already fully specified. · PM Drills · 23 · 30 sec–2 min
The AI spreadsheet converter · 30 sec–2 min
Situation
A team proposes an LLM for a fixed CSV conversion.
All columns, types, and output mappings are known. The task must be repeatable and reject invalid rows clearly.
Think before scrolling
What would justify using a model here?
Separate deterministic transformation from any truly ambiguous part of the workflow.
How a strong PM thinks
Start with a tested mapping and validation.
Ordinary code can rename fields, convert units, and report malformed values. A model adds variability and cost without addressing uncertainty in the stated task.
If unknown source schemas later appear, a model could propose mappings for review. Keep the approved transformation deterministic. Evaluate that narrow benefit instead of replacing a reliable pipeline with generation.
Takeaway
Use AI for the uncertain step, if one exists.
Known rules usually deserve explicit, testable execution.