Extract All Formulas from an Excel File

Reverse-engineer a complex spreadsheet. Upload an Excel workbook, and we'll pull out every single formula, showing you the cell reference, the formula, and which sheet it's on.

Extract All Formulas from an Excel File

Reverse-engineer spreadsheets by extracting formulas and generating JavaScript equivalents.

CSV Data Input

Upload

Result

Extracted formulas will appear here

How the Excel Formula Extractor Works

Upload your CSV data or paste cells containing formulas. The extractor scans for Excel formula patterns like SUM, VLOOKUP, IF, and more. It identifies cells that contain formulas.

Choose to detect formulas or generate JavaScript equivalents. Detection lists all formulas with their cell references. Generation creates JavaScript functions that replicate common Excel formulas.

Results show formula location, the formula itself, and description. Copy the list or download as a text file. Understand complex spreadsheets by seeing all formulas at once. All processing happens locally.

When You'd Actually Use This

Auditing complex spreadsheets

Inherited a workbook you didn't create? Extract all formulas to understand the logic. Map dependencies before making changes.

Documenting spreadsheet logic

Create documentation for your workbooks. List all formulas for future reference. Essential for handover and compliance.

Migrating to code

Moving from Excel to an application? Extract formulas to understand business logic. Generate JavaScript equivalents as starting point.

Learning Excel formulas

Study formulas from template workbooks. See how experts structure complex calculations. Learn by examining real examples.

Finding formula errors

Something's calculating wrong. List all formulas to spot issues. Find circular references or incorrect ranges.

Creating formula libraries

Build a reference of useful formulas. Extract from working spreadsheets. Create a personal formula cookbook.

What to Know Before Using

CSV doesn't preserve formulas.CSV exports show values, not formulas. For formula extraction, you need the actual Excel file. This tool simulates formula detection from patterns.

JavaScript equivalents are approximations.Generated code mimics Excel behavior but may differ in edge cases. Use as starting point, not production-ready code.

Cell references are estimated.Without actual Excel file, cell positions are approximated. For accurate references, use Excel's Formula Auditor.

Array formulas aren't detected specially.CSE (Ctrl+Shift+Enter) formulas look like regular formulas in text. Special handling requires Excel inspection.

Pro tip: For real Excel files, use Excel's built-in "Show Formulas" (Ctrl+`) or Formula Auditor. This tool works best with formula text you've copied from Excel.

Common Questions

Does it work with .xlsx files?

Upload requires CSV format. Export your Excel file as CSV first. For direct .xlsx formula extraction, use Excel's built-in tools.

What formulas are detected?

Common functions: SUM, AVERAGE, VLOOKUP, IF, COUNT, MAX, MIN, CONCATENATE, and many more. Any cell starting with = is flagged.

Can it extract macros?

No, macros (VBA code) are separate from formulas. This tool only extracts cell formulas. Use Excel's VBA editor for macro extraction.

How accurate is JavaScript generation?

Basic formulas translate well. Complex Excel-specific functions may need manual adjustment. Use generated code as a template.

Can it handle nested formulas?

Yes, nested formulas like IF(VLOOKUP(...),..., ...) are detected as single formulas. The full nested structure is preserved.

Does it show formula dependencies?

This tool lists formulas but doesn't map dependencies. Use Excel's Trace Precedents/Dependents for dependency visualization.

Is this tool free?

Yes, completely free with no registration. Your data stays in your browser. Safe for proprietary spreadsheet analysis.

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Extract All Formulas from an Excel File