Free browser-local spreadsheet tool
Merge Excel files without uploading workbooks.
Combine XLSX files into a clean workbook, reorder the input files and remove duplicate rows before export. IndiMerge keeps the spreadsheet workflow in your browser.
Workbook cleanup
- Merge the first worksheet from each workbook.
- Preserve all unique headers.
- Remove or keep duplicate rows.
Useful for exports
Bring together monthly reports, supplier sheets, sales exports or recurring workbooks into one file.
Private processing
Your XLSX files are read locally. No account, server upload or hidden document queue is needed.
Tip: use consistent column names when possible. IndiMerge preserves unique headers and fills missing values with blanks.
How to merge Excel files
Combine XLSX workbooks into one clean file.
This workflow is useful for monthly reports, supplier sheets, sales exports and recurring spreadsheet cleanup.
- Add your workbooksSelect the XLSX files you want to combine.
- Set cleanup optionsReorder files, preserve unique headers and choose whether to remove duplicates.
- Export one workbookDownload the merged XLSX file and continue working in Excel or Sheets.
Excel merge FAQ
Common questions.
Which Excel format is supported?
The tool is designed for XLSX workbooks and merges their first worksheet into a single output.
Can workbooks have different columns?
Yes. Unique headers are preserved and missing values are left blank in the merged output.
Can I remove duplicate rows?
Yes. Use the duplicate-row option before exporting the final workbook.