S SheetGatherOn your device · No uploads

YOUR MONTHLY REPORTS, TOGETHER

Many spreadsheets.
One clear view.

Combine Excel files and sheets into one workbook. Match headers, trace every row, and keep your files on your computer.

1 Select files2 Choose sheets & ranges3 Review & download

STEP 01

Choose your Excel files

Your files stay with you

Select one workbook with several sheets, or several monthly files.

XLSX, XLSM, XLS, XLSB · up to 25 MB per file, 50 MB per batch
Macros are never run. Password-protected files are not supported.

Private by design

This version has no uploads, ads, analytics, or browser storage. It reads only the files you select and works offline. Clear all releases the app’s references to your data.

Built from your template

Case-insensitive header matching, source file and tab columns, blue/red headers, a header matrix, and a merge summary. Duplicate header names use the first column and produce a warning.

How to combine your monthly reports

1. Select your workbooks. 2. Choose the sheets and ranges, including their header rows. 3. Review the combined data and download your Excel workbook.

Will my files be uploaded?

No. Spreadsheet contents are processed in your browser. Hosting receives normal page requests, but the merger has no file-upload endpoint.

What happens to formulas?

The tool copies saved formula results. Recalculate and save your source workbook in Excel before combining it.

Can I try sample files?

Download the fictional January workbook and February workbook, then select both in the tool above. You should see four records.

Which limits apply?

Up to 25 MB per file, 50 MB per batch, and two million selected or output cells. Password-protected workbooks are not supported. Large files may take longer depending on your device.