Your spreadsheets, interrogated.
Every business runs on spreadsheets nobody has time to actually read. Upload them and ask questions in English — ChatGPT runs real code against your real numbers. Here's how to do it without fooling yourself.
01 This is real computation, not vibes
When you upload a spreadsheet and ask a question, ChatGPT doesn't guess from the general shape of your data — it writes and runs actual analysis code against the file (that's Code Interpreter working under the hood). Totals are computed, not remembered. This matters: it means the arithmetic is trustworthy even though the interpretation still needs your judgment.
02 The conversation ladder
Pick one number you already know — last month's total, the row count, a customer's balance — and check ChatGPT's version against it before trusting anything else. One known-good anchor validates the whole pipeline. If the anchor's wrong, the export or the column mapping is wrong, and you just saved yourself from presenting garbage.
03 Questions worth stealing
- "Which customers are quietly shrinking?" — trend detection across rows you'd never eyeball.
- "If this trend continues, where are we in December?" — with the assumptions stated.
- "What would I have to believe for this number to be wrong?" — the sanity-check question.
- "Find anything in this data that would surprise the owner of this business."
04 Limits and hygiene
Very large files can hit limits — filter to the relevant slice first. Formulas don't survive the trip: ChatGPT works on values, so treat outputs as new files, not edits to your master. And the standing rule: customer data, salaries, anything sensitive — know your plan's data policy before uploading, and when in doubt, anonymize the columns that matter. (Full data-hygiene guidance in Privacy & what not to paste.)
Export something real — sales, expenses, inventory, your bank's CSV. Run the whole ladder: orient, clean, summarize, probe. Twenty minutes, and you'll know things about your own numbers you didn't this morning.
Open ChatGPT →This week's challenge
Take the spreadsheet you're supposed to look at every month but don't. Upload it, verify one anchor number, then ask: 'Give me the five things in here I most need to know, ranked by how much money each one represents.' Put the answer where you'll act on it.