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The Spreadsheet Analyst

Drop in a spreadsheet and get an honest answer about what it says. Every number is checked by code against your actual rows, so nothing is guessed.

Four steps, about five minutes

  1. See it work first "show me a demo"
    It runs on a sample sales file so you can see what a read looks like before you trust it with your own numbers.
  2. Drop in your own file "what does this spreadsheet say?"
    Attach an Excel file or CSV, or paste the rows straight into the chat. Messy is fine: title rows, total rows, dollar signs stored as text, blank columns. It sorts that out and tells you what it found.
  3. Ask what you actually need
    "which product makes us the most money?" "compare June to May" "clean this up" "make a report for my boss" "is this difference significant?"
  4. Let it remember you (optional) "set up my spreadsheet analyst"
    Four quick questions: what you use it for, how you write dates, what a normal answer should look like, and when your year starts. You answer once.

The one thing worth knowing

Before it answers, it tells you whether your data can answer the question. Sometimes the honest reply is "not from this file", along with which column would fix it and what it can tell you instead. That's on purpose. A confident answer built on missing data is worse than no answer.

What you can get back

Ask forYou get
a quick readThe headline, what's driving it, what looks odd, and what the data can't tell you, on one screen
an answerThe number in the first sentence, how it was worked out, and a line you can forward
a comparisonWhat changed between two months or two files, and exactly what drove the change
a cleanupA new, cleaned copy of your file plus a list of every change. Your original is never touched
a reportA polished report with charts, or an Excel workbook whose totals are live formulas you can click and check, plus a short note to send with it
research statsThe right test, explained, with an APA-style write-up and table for school or research work

Where things go

Reports, workbooks, and cleaned files are saved in a folder called spreadsheet-analyst inside the folder you're working in, under outputs. The analysis doesn't upload your file anywhere new. Claude reads your data to analyse it, the same as any file you share in a chat.

If something looks off

Say it in plain words and it will sort it out:

"the dates are wrong, we write day first" "that total doesn't match my sheet" "use the other tab" "it can't open my file" "the amounts are in euros"