How to use this office tool
- Select or drop the supported file.
- Review the detected sheet and adjust the operation-specific options.
- Process the file, inspect the limited preview and output counts, then download the new result.
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Upload a spreadsheet and choose a sheet and header row. The tool samples display values, calculates column metrics, previews the profile, and exports it.
Each column receives nonblank, blank, unique, inferred type, minimum, maximum, and example metrics.
XLSX, XLS, CSV, and TSV are supported. A new XLSX profile report is created.
XLSX, XLS, CSV, and TSV are supported. A new XLSX profile report is created.
| Format | Use |
|---|---|
| XLSX / XLS | Workbook data and formulas where applicable |
| CSV / TSV | Delimited tabular data with detected quoting |
No. Processing happens in your browser, and the selected file is not sent to Calloffice.
Formula cells are preserved where the selected operation can retain them, but the browser does not reproduce Excel's full calculation engine.
Yes, within your browser's available memory. The preview is capped, and very large workbooks may take longer or need to be split first.
The tool uses displayed spreadsheet values where appropriate and avoids intentional numeric conversion unless the selected operation requires it. Review identifier columns after export.
Check the preview, output counts, headers, and a few representative rows. Keep the original file until the result has been verified.
| Stage | Behavior |
|---|---|
| Input | Table Analysis & Summaries |
| Privacy | Local browser processing |
| Download | Newly generated result file |