How to Analyze Google Sheets Data With AI

Google Sheets is where a lot of small-business and team data lives: the shared tracker, the form responses, the export someone pasted in. Asking an AI assistant questions about it means getting the data out in a form the assistant can compute over. That's a two-minute export — but the choices you make in those two minutes (CSV or XLSX? which tab? values or formulas?) decide whether the answers are right. This guide covers the export, what changes on the way out, and how to ask once it's in.

Export: XLSX or CSV?

File → Download offers both. The rule:

• Multiple tabs you care about → XLSX. One file, every tab preserved as a sheet. Upload it and each tab becomes its own table.
• One tab → CSV. Simpler, and the export is exactly what you see. Note that CSV exports only the current tab — check which one is active before downloading.

Either way, formulas are exported as their current values. That's what you want for analysis; just know that a sheet full of IMPORTRANGE or GOOGLEFINANCE cells exports whatever they showed at that moment, and an error cell (#REF!, #N/A) exports as the error text.

What changes in the export

Dates. Sheets stores dates as numbers with a display format; the XLSX export keeps them as dates and the CSV export writes them in the displayed format. If your column shows 3/4/2024, that's what the CSV contains — ambiguous between March 4 and April 3. Before a CSV export, set the column's format to yyyy-mm-dd (Format → Number → Custom date and time). It's the only unambiguous format, and every tool reads it correctly.

Numbers with formatting. A cell displaying $2,400.50 exports as $2,400.50 in CSV (text) but as 2400.5 in XLSX (a number). Another point for XLSX when the sheet has currency formatting. ChatExcel strips symbols and separators before doing arithmetic either way, but XLSX is cleaner.

Form responses. A Google Forms response tab has a Timestamp column and one column per question, with question text as headers — often long. Long headers are fine; the assistant refers to them by name. But a question header that's also the answer format ("Rate 1–5") sometimes confuses grouping; rename it to "Rating" before export if you can.

Checkboxes export as TRUE/FALSE. Dropdown chips export as their text. Merged cells export with the value in the top-left cell and blanks elsewhere — fill down before export (select the range, then Ctrl+D) or the grouping will have a large blank category.

Hidden and filtered rows are still exported. If the sheet has a filter view applied, the CSV contains every row, not just the visible ones. Filter in the assistant instead.

Prepare the tab (one minute)

1. Header in row 1. Delete any title or note rows above it.
2. No total rows at the bottom of the data. Sheets users love a =SUM row; it will be counted as data.
3. Date columns formatted yyyy-mm-dd.
4. Frozen rows and colors don't matter — they're display-only.

The messy data checklist covers the rest if the tab is rough.

Upload and ask

Upload the file to ChatExcel. The first response describes each tab — what a row represents, the key columns, a few findings — so you can confirm it read the structure correctly. Then ask the way you'd ask a colleague:

• "Total amount per month, as a line chart."
• "Which 10 items appear most often in the Responses tab?"
• "Average rating by department."
• "Which rows have a blank email?"

For multi-tab workbooks, name the tab when it matters: "in the Q3 tab, revenue by rep." Questions that cross tabs work too — "join Orders to Customers on customer ID and total by segment" — because each tab is a separate table the assistant can combine.

Getting answers back into the Sheet

Two options:

• Copy the numbers. Every answer table and chart in ChatExcel has a copyable table; paste it into a summary tab.
• Learn the formula. Ask "how do I do that in Google Sheets?" The assistant writes the SUMIFS, QUERY, or pivot recipe. Sheets' QUERY function in particular — =QUERY(A:E, "select A, sum(D) group by A") — does grouping natively, and the assistant will write it against your columns.

Keeping the export current

Exports are snapshots. For a sheet that changes daily, set a rhythm: export Monday morning, upload, ask the week's questions. If that's too manual, most of the questions people ask weekly — totals by category, top N, trend — can become a QUERY or pivot inside the Sheet once, using the formula the assistant gave you, and the upload becomes the tool for the new questions.

Privacy

A Google Sheet often contains names, emails, and amounts. Before uploading to any tool, know how it handles data: ChatExcel encrypts in transit and at rest, deletes files after 30 days (or immediately when you delete the chat), and doesn't train on your data. Details in the privacy policy.