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#018 · Validation & Quality Checks Tool

Spreadsheet Error Checker

Scan spreadsheet cells for common formula error tokens, blank headers, uneven rows, duplicate headers, and mixed column types.

Office File Tool

Local browser processing
row
rows
Ad space

How to use this office tool

  1. Upload the workbook and choose a sheet to preview.
  2. Set the header row used for heading checks.
  3. Run the checker, review reported issue categories, and download the XLSX report.

What this tool does

Builds a separate error report instead of changing the source workbook.

Checks parsed cell values and structure, then exports issue type, sheet, cell or row, and a concise detail.

This is a structural screening report, not a replacement for Excel formula recalculation or business-rule validation.

Supported formats

Accepts XLSX, XLS, CSV, and TSV. Findings are exported as a new XLSX report.

InputOutput
XLSX, XLS, CSV, TSV (as applicable)New XLSX file

Tips for better results

  • Treat findings as review candidates, not automatic proof of an error.
  • Recalculate the original workbook in Excel for formula-engine results.
  • Add project-specific validation rules after structural cleanup.

FAQ

Which spreadsheet errors does this checker find?

It flags common Excel error tokens, blank or duplicate headers, uneven row lengths, and mixed nonblank value types.

Does it calculate Excel formulas to find errors?

No. It inspects stored formulas and displayed or cached values without recreating Excel's calculation engine.

Will the checker modify my workbook?

No. It creates a separate issue report and leaves the selected source file unchanged.

Can a mixed-type warning be harmless?

Yes. Columns can intentionally contain numbers and labels, so review each warning in context.

Why might an Excel error not appear in the report?

Errors dependent on recalculation, external links, macros, or unsupported workbook features may not be visible to browser parsing.

Processing limits

LimitValue
File size25 MB
PreviewUp to 100 rows × 12 columns

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