Name your columns and result

Instead of "sum the sales", say "sum the Revenue column where Region is West". Upload the file first so ExcelGPT sees your actual headers.

Give an example

For text or transformations, show one input and the expected output. Examples remove ambiguity faster than long descriptions.

Iterate

If the first result isn't right, refine — "make it case-insensitive" or "return blank instead of 0" — rather than restarting.