Start with a workbook—or an idea.
Sharper can analyze and modify the spreadsheets you already have, or build a new, editable workbook from your requirements.
A workbook you can keep working in.
Sharper delivers a real Excel file with visible assumptions, connected formulas, useful sheet structure, and formatting that clarifies the model instead of hiding it.
Northstar_FY26_Revenue_Plan.xlsx
3 sheets · formulas recalculated
The spreadsheet skill checks its own work.
The /xlsx skill follows a disciplined production sequence: understand the workbook, make targeted changes, recalculate formulas, validate the package, and inspect the sheets that carry visual risk.
/xlsx
Spreadsheet task activity
Inspect the workbook
CompleteMapped three sheets, formula ranges, number formats, freeze panes, and the existing chart.
Build the model
CompleteAdded base, upside, and downside scenarios with assumptions stored in dedicated cells.
Recalculate formulas
CompleteRefreshed cached values so the workbook opens with current scenario totals.
Validate the XLSX
CompleteChecked required sheets, the chart count, source ranges, and common Excel formula errors.
Review visual risk
CompleteRendered the Summary sheet and checked the chart, labels, wrapping, and visible totals.
Northstar_FY26_Revenue_Plan.xlsx
3 sheets · 1 chart · validated XLSX
FAQ
Practical details about Excel inputs, formulas, existing workbooks, validation, charts, and delivery.
Can Sharper edit an existing Excel workbook?
Yes. The spreadsheet skill inspects an existing workbook before changing it, then preserves its structure and visual conventions unless you ask for a redesign.
Are the formulas editable?
Yes. When inputs may change, derived values are written as Excel formulas connected to workbook cells rather than flattened into static numbers.
How does Sharper check formula results?
It recalculates workbooks that contain formulas, then validates cached values for common Excel errors such as broken references, division by zero, and invalid names.
Can Sharper create charts and formatted tables?
Yes. The skill can create tables, filters, validation, conditional formatting, and reliable Excel charts when they make the workbook easier to understand or use.
Does Sharper visually inspect every sheet?
It uses risk-based visual QA. Sheets with charts, complex layouts, images, or material formatting changes are rendered and inspected; data-only changes rely on deterministic checks.
What file do I receive?
The deliverable is a real .xlsx workbook saved to the task workspace, ready to download and continue editing in Excel or another compatible spreadsheet app.
Turn the next dataset into a working workbook.
Start with an existing file, source data, or a model you need to build. Sharper leaves you with an editable, validated Excel deliverable.