#054 · Validation & Quality Checks Tool

Check Excel Column Consistency

Inspect a column for mixed value types and export a detailed consistency report. Your data stays in this browser session.

Office File Tool

Local browser processing
row
rows
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How to use this office tool

  1. Choose a spreadsheet file and review the options.
  2. Set the column number and preview limit.
  3. Select Check consistency, review the bounded preview, then download the new result.

What this tool does

Inspect a column for mixed value types and export a detailed consistency report.

Input → validate and parse → apply the selected operation → create a new downloadable file

The source file is not uploaded. Keep a backup when working with important workbooks, because browser libraries do not reproduce every Excel feature.

Supported formats

XLSX and XLS files are read with SheetJS in the browser. CSV and TSV are supported where the operation has a meaningful tabular result. Advanced Excel objects may not be preserved.

FormatSupport
XLSXRecommended
XLSBasic workbook data
CSV / TSVTabular data where applicable

Tips for better results

  • Work from a copy of the original workbook.
  • Use a clear first-row header and review the preview before downloading.
  • Open the result in Excel or another spreadsheet app and confirm important formulas and formats.

FAQ

What does an inconsistent Excel column mean?

It means the populated cells do not share the dominant value type, such as text mixed into a mostly numeric column.

Are blank cells counted as inconsistencies?

Blank cells are reported separately and are not treated as a conflicting data type.

Can the report detect mixed dates and numbers?

Dates recognized by the parser are classified separately from ordinary numbers.

Which column should I check?

Enter the one-based column number, such as 1 for column A or 3 for column C.

Does this tool edit my source worksheet?

No. It creates a separate report workbook and leaves the original file untouched.

Processing notes

StageBehavior
PrivacyLocal browser processing
PreviewLimited to 5–100 rows
OutputNew file or audit report

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