Formula Builder
Build the Excel formula you need
Describe your calculation, review the formula and its assumptions, and copy it into Excel. Start without uploading a workbook.
Open Formula BuilderDescribe the calculation
Explain the rules and locations that matter, such as adding sales where region is West. Supported local recipes use explicit rules; unclear requests need more detail rather than an invented assumption.
Review the formula and its checks
Inspect formula text, explanation and supported local checks. Unsupported functions remain unverified. Check a small example whose answer you know.
Copy or place it in a workbook
Copy the formula, or attach a supported XLSX locally and review a proposed placement in an empty result column. Inspect the separate workbook result; the original is not overwritten.
Do I need a file?
No. Start with your calculation in words, or paste a formula to inspect it. Optional workbook references make cell locations more concrete.
Is this a Google Sheets formula checker?
The builder targets Excel syntax and supported Excel checks. Some formulas also work in Google Sheets, but cross-product compatibility is not guaranteed.
What uses tokens?
Copying or exporting a local formula action uses 2 tokens. Requests sent to an AI model use measured tokens separately, with confirmation in the workflow.