How to use this office tool
- Select exactly two compatible files.
- Review the header or column setting and preview limit.
- Choose Compare headers, inspect the bounded preview, and download the newly generated result.
#082 · Compare Audit & Reconcile Tool
Compare Excel Headers
Compare the header rows of two Excel, CSV, or TSV files and download a clear CSV report of matches, missing fields, and column positions.
Office File Tool
Two files requiredrow
rows
Ad space
What this tool does
Extracts the chosen header row from the first sheet in each file, compares trimmed names case-insensitively, and records position changes and one-sided fields.
Extracts the chosen header row from the first sheet in each file, compares trimmed names case-insensitively, and records position changes and one-sided fields.
Keep the original file until you have checked the downloaded result in your spreadsheet application.
Supported formats
Accepts XLSX, XLS, CSV, and TSV. Output fidelity depends on features supported by SheetJS CE.
| Format | Use |
|---|---|
| XLSX / XLS | Workbook data input where applicable |
| CSV / TSV / XML | Plain structured-data input where applicable |
| Output | A newly generated XLSX or CSV file |
Tips for better results
- Keep a backup before processing.
- Use a clear header row and consistent column types.
- Review IDs, dates, formulas, and leading zeros in the preview.
- For sensitive files, close the tab after downloading the result.
FAQ
Does Excel header comparison care about capitalization?
No. It trims surrounding spaces and compares header names case-insensitively.
Can the tool detect columns that moved?
Yes. A shared header with a different position is labeled Position changed.
Which worksheet is compared?
The tool compares the chosen header row from the first worksheet in each uploaded file.
Are duplicate header names reported separately?
Duplicate names are collapsed by normalized header text, so review duplicated columns directly in the source files.
What files can I use for header reconciliation?
You can compare two XLSX, XLS, CSV, or TSV files up to 25 MB each.
Related office tools
Processing summary
| Stage | Behavior |
|---|---|
| Read | Local browser memory |
| Transform | Extracts the chosen header row from the first sheet in each file, compares trimmed names case-insensitively, and records position changes and one-sided fields. |
| Export | New downloadable file |
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