Merge Excel Files

Combine multiple XLSX or CSV files into one workbook.

Merge Excel Files

Drag & drop files here or click to browse

XLSXCSV
Files are processed in your browser and never uploaded
No spreadsheet file selected
🔒 Client-Side Processing · Files never leave your browser · No server uploads

About Merge Excel Files

Combine multiple Excel workbooks (.xlsx, .xls) or CSV files into a single master workbook. Consolidate separate sheets or append matching tables cleanly in your browser.

How to use Merge Excel Files

1

Add your file

Choose a file or drag it onto the upload box. We check that the file type and size are supported.

2

Pick your options

Change the settings shown next to the file if you need to. The defaults work for most files.

3

Download the result

Click the main button, then download your new file. Check it before you share or submit it.

What it does

  • ✓Merges multiple workbooks into a single multi-sheet Excel file
  • ✓Preserves original sheet names, table layouts, and cell data
  • ✓Supports mixed workbook uploads with drag-and-drop file ordering
  • ✓Client-side processing ensures proprietary financial data remains confidential

When to use it

Quarterly & Monthly Consolidation

Combine monthly department expense files into a unified annual workbook.

Multi-Branch Reporting

Merge regional sales spreadsheets from different branch offices into a master report.

Data Collection Aggregation

Consolidate multiple survey or inspection response sheets into one file.

Project Tracking

Combine task lists, risk matrices, and resource allocations into one project workbook.

Your file stays on your device

This tool runs entirely in your browser. Your file is processed on your own device and is never uploaded to our servers.

Tips

  • •Ensure sheet names across source workbooks are descriptive to easily identify merged tabs.
  • •Check that column headers match across sheets if you plan to aggregate data later.
  • •Open the merged master workbook in Excel to verify all sheets transferred successfully.

Merge Excel Files FAQ