Combine multiple Excel files into a single workbook with every formula, style, merged cell, and conditional format preserved exactly as the original.
Formulas Cell Styles Merged Cells Conditional Formatting Number Formats Charts Data Validation Images
Drop Excel files here
or click to browse
.xlsx.xls.csv
Sheet Options
Output Filename
.xlsx
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Merge Complete
Data PreviewShowing values only. Full formatting is in the download.
How It Works
This tool merges Excel files at the ZIP level, copying raw XML sheet data along with all style definitions, shared strings, charts, and drawings. Unlike most online tools, nothing is converted or re-encoded, so formatting stays pixel-perfect.
Keyboard Shortcuts
Ctrl + O — Open file picker Ctrl + Enter — Combine files Ctrl + S — Download result Ctrl + Shift + X — Clear all ? — Show this help
What Gets Preserved
Formulas, cell styles (fonts, colors, borders, fills), merged cells, column widths, row heights, number formats, conditional formatting, data validation rules, charts, drawings, images, sheet-level auto-filters, and named ranges within each sheet.
Drag to Reorder
Grab any file in the list and drag it to change the tab order in the output workbook.
Privacy
All processing happens in your browser. No files are uploaded anywhere. Your data never leaves your machine.