Combine selected sheets from one workbook into a new workbook, with an optional source-sheet column for traceability. Everything runs locally in your browser.
Selected sheets are appended in workbook order. The first selected sheet supplies the output header, and matching headers in later sheets are skipped.
The original file is never overwritten, and no file contents are uploaded by this page.
XLSX and XLS are supported. Sheets with different column layouts can still be appended, but aligning their headers first produces a cleaner result.
| Format | Use |
|---|---|
| XLSX / XLS | Workbook input |
| CSV / TSV | Delimited table input or output |
| JSON | Optional result export |
No. Processing happens locally in your browser. The page does not send workbook contents to a server.
No. The tool creates a separate download, so your selected source file remains unchanged.
Formula handling depends on the operation. Formula-inspection tools retain formula text, while rebuilt data outputs may not preserve every Excel feature.
It checks file size and limits the on-page preview. Very large or complex workbooks may still exceed the browser’s available memory.
Browser spreadsheet libraries cannot preserve every advanced Excel object. Open the output and verify important values, formats, and business rules before relying on it.
| Stage | Behavior |
|---|---|
| Input | Validated locally |
| Preview | Row-limited |
| Output | New downloadable file |