Free AI spreadsheet tool

AI Spreadsheet Generator

Describe the model, tracker, or report you need. Sharper builds the structure, writes real formulas, recalculates the results, and validates the workbook before you open it in Excel.

Spreadsheet task prompt

Prefilled with the revenue-plan example

Editable before sending

Attachment

northstar-fy26-monthly-revenue.csv

9 months of revenue by stream · customer counts · CSV

Download sample

The monthly revenue data behind the example. In the task, attach this file or your own data before sending the prompt.

Use the attached monthly revenue data to create a for : a Summary sheet with quarterly revenue by stream, base and upside scenarios for Q4, editable assumptions in their own sheet, and a summary chart.

Free to start: the task runs on Sharper's Free plan. If you are not signed in, you will be asked to create a free account first.

What is this tool used for?

Start with a workbook or an idea: build a new model from requirements, or bring an existing .xlsx file to clean data, trace formulas, and make precise changes.

Build a workbook from a requirement

Describe the model, tracker, report, or dataset you need. Sharper builds the sheet structure, formulas, charts, and checks.

Edit or analyze an existing file

Attach an .xlsx in the task to clean data, trace formulas, investigate anomalies, or make precise changes without breaking what works.

Leave with a real Excel file

The deliverable is an editable workbook with visible assumptions, connected formulas, useful sheet structure, and formatting that clarifies the model.

Illustrative Northstar revenue-planning workbook built by Sharper, with a formula bar, quarterly revenue table, selected total cell, and Summary, Monthly Data, and Assumptions sheets.
Illustrative workbook

Why use Sharper for spreadsheet work?

The spreadsheet skill checks its own work: it inspects the workbook, makes targeted changes, recalculates formulas, validates the file, and reviews the sheets that carry visual risk.

A skill that checks its own work

Every workbook is validated for expected sheets, charts, and common Excel formula errors, then the high-risk sheets are rendered and visually reviewed.

Live formulas, not pasted values

Sharper keeps editable formulas where inputs may change and recalculates results, so the workbook opens with current totals instead of stale numbers.

Structure that clarifies the model

Summaries, source data, and assumptions live in separate sheets, and researched values stay traceable to their sources.

FAQ

Practical details about using Sharper as an AI spreadsheet generator.

What is an AI spreadsheet generator?

It turns a plain-English requirement into a working Excel file. Sharper opens the work as a task: describe the workbook, review the build steps, and download the finished .xlsx.

Can it work with a spreadsheet I already have?

Yes. Attach an existing .xlsx in the task. Sharper inspects the sheets, formulas, styles, and structure before editing, so targeted changes do not break what already works.

Does it produce real formulas or pasted values?

Real formulas. Sharper keeps editable formulas where inputs may change, stores assumptions in dedicated cells, and recalculates results so the file opens with current totals.

What does the spreadsheet task create?

A validated .xlsx workbook: structured sheets such as Summary, Data, and Assumptions, connected formulas, charts where useful, and formatting that clarifies the model.

How does Sharper check the workbook?

It validates expected sheets, chart counts, source ranges, and common Excel formula errors, then renders the visually risky sheets to check the chart, labels, and visible totals.

Is the AI spreadsheet generator free to use?

Yes. The task runs on Sharper's Free plan, which includes 300 credits per week. Paid plans add more credits and capacity for recurring spreadsheet work.

Will every workbook look like the same template?

No. The same skill cleans operational data, assembles sourced research tables, and builds scenario models, shaped by your requirements rather than a fixed template.

Turn your requirements into a working Excel model.

Describe the workbook, open the prefilled task, and let Sharper build, recalculate, and check it.