Merge Excel Files Securely

Combine multiple Excel workbooks or CSV files into one master sheet instantly. Your data never leaves your computer.

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Drop your files here

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How to Merge Excel Files Online in the USA

Using our specialized USA-based web tool, you can merge excel files safely and efficiently:

Select all the Excel files (.xlsx or .xls) you need to combine.
Drag and drop to reorder the files for the final merged workbook.
Click "Merge Files" to process them instantly in your browser.
Download your newly merged Excel file immediately.

Maximum Privacy: We prioritize your security. Unlike other services, we don't use servers to process your data. This client-side approach ensures that you can merge excel files without risking data leaks, which is critical for US-based businesses and professionals.

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Data Privacy Guaranteed

Unlike cloud tools, we process your files locally using WebAssembly. No files are uploaded to any server.

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Unlimited Merging

Combine as many files and rows as your computer's memory can handle, with zero restrictions.

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Instant Download

As soon as the merge is complete, your new file is ready to save directly to your hard drive.