Fix Google Sheets formula errors with AI.
Paste a broken formula, add the error message, and get a copy-ready fix you can test on one row.
Try it
Paste. Click. Copy.
Three modes
Fix
Repair broken formulas.
Explain
Understand what a formula does.
Generate
Create formulas from plain English.
Use it for real spreadsheet formula problems
Sheet Formula Helper is for Google Sheets and Excel users who need a fast first fix, a plain-English explanation, or a starter formula they can test on one row.
#N/A or wrong lookup
Fix missing exact match, wrong return columns, lookup ranges, and IFERROR fallbacks.
Formula parse errors
Check separators, quotes, sheet names with spaces, and missing parentheses.
Gemini not available
Use a browser-based helper when Gemini in Sheets is not enabled for your account, domain, or current sheet.
Need to compare formulas between two Excel files?
If you are reviewing an original and revised XLSX workbook, use WorkbookDiff to find formula-expression changes between versions and export a CSV difference report.
Formula tools
Pick the exact problem.