EXCEL TOOL
Merge Excel files into one workbook
Collect worksheets from several Excel or CSV files into a single XLSX workbook in your browser.
How this Excel merge works
- Select at least two XLSX, XLS or CSV files.
- The tool reads every worksheet from each file.
- Choose Merge workbooks.
- Download one XLSX containing the collected sheets.
Use cases
This is useful when monthly exports, project files or team submissions arrive as separate workbooks and you want one container workbook before reviewing them. Each source worksheet stays separate, which reduces the risk of silently mixing columns that only look similar.
Important Excel limitations
Excel files can contain macros, external links, charts, pivot caches and vendor-specific features. This lightweight browser tool is aimed at routine tabular workbooks. For finance, regulated records or complex models, keep the originals and verify the output carefully.
Frequently asked questions
Does this append all rows into one sheet?
No. This launch tool collects each source sheet into one output workbook. A separate append-rows tool is planned because the data-cleaning rules are different.
What happens if sheet names are duplicated?
The tool creates unique output sheet names automatically while staying within Excel's worksheet name length limit.
Are formulas preserved?
Many standard cell values and formulas are carried through by the workbook library, but complex formatting, macros, external links or advanced workbook features may not survive perfectly. Verify important workbooks.