October 21, 2026 · Guide · 1 min read

Analyse an Excel file with AI, without calculation errors

Ask your spreadsheet questions in plain words: the Spreadsheet agent reads the file, calculates in code and gives you real workbooks back.

A white spreadsheet with one column highlighted in teal, and a small bar chart.

In short

  • [01]Attach your Excel or CSV file and ask your question as you would ask a colleague.
  • [02]Every figure is calculated in code, not estimated by the model.
  • [03]You get a real workbook back, with its formulas, in Excel or in Google Sheets.

Why AI often gets numbers wrong

A language model predicts text. Asked for a sum or an average, it can give a plausible but wrong result, and the risk grows with the size of the table.

Kalyos's Spreadsheet agent splits the work: it reads your file, does the calculations in code, and the model explains. The figures you read are calculated figures.

How to do it, step by step

  1. 1Open Kalyos and pick the Spreadsheet agent from the composer.
  2. 2Attach your Excel or CSV file, or paste your table into the conversation.
  3. 3Ask your question: “Which regions grow the most?”, “Compare 2025 and 2026 month by month”.
  4. 4Read the answer, then download the workbook in Excel or open it in Google Sheets.

What you can ask it

  1. 1Analyse an Excel or CSV file
  2. 2Answer your questions about the figures
  3. 3Explain and audit formulas
  4. 4Build a real workbook, with its formulas

Audit a workbook before you send it

The agent spots error values, formulas that differ from their neighbours and numbers typed by hand in the middle of formulas. Useful before sending a file to a client or to management.

And your data?

Your files and conversations are encrypted before they are stored, in Europe, and never train any AI model.

See how Kalyos protects your data
Try the Spreadsheet & data agentYour spreadsheets, analysed and built for you

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