Excel Merger - Combine Excel Files Online Free

Merge multiple Excel files into one workbook. Combine sheets or append rows. No software installation, works in your browser.

Excel Files

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Drop Excel files here or click to upload

.xlsx and .xls files supported

No files added yet. Upload Excel files to merge them.

Merge Options

Merge Mode

Separate Sheets Each file becomes a sheet

Append Rows Stack all data in one sheet

Output Filename

.xlsx

Tips

Drag files to reorder before merging
For row append, use files with matching columns
Large files may take longer to process

Security: Only process files from sources you trust. All processing happens locally in your browser.

Frequently Asked Questions

Upload multiple .xlsx or .xls files, choose whether to combine as separate sheets or append rows, then click Merge. Download the combined workbook instantly.

Separate Sheets keeps each file as its own sheet in the output. Append Rows combines all data into one sheet, stacking rows vertically—ideal for consolidating similar data.

Yes, but for best results when appending rows, files should have the same column headers. Mismatched columns will appear in separate columns in the merged output.

There's no strict limit, but browser memory applies. Merging 50+ files or very large spreadsheets may be slow. For massive merges, process in batches.

Cell values are preserved. Complex formulas referencing other files may not work correctly in the merged output. Values calculated by formulas are retained.

Currently, all sheets from each file are included. You can use our Excel splitter first to extract specific sheets, then merge those.

Upload .xlsx (Excel 2007+) or .xls (legacy Excel). Output is always .xlsx for modern compatibility and smaller file size.

Basic formatting like bold, colors, and borders are preserved. Complex features like charts, pivot tables, and macros may not transfer.

Yes—all merging happens in your browser using JavaScript. Your files never leave your device. No server uploads, complete privacy.

Sheets are merged in the order files are listed. Drag files in the list to reorder before merging.