Excel Merge
Merge multiple Excel/CSV files into one, either stacked into a single table or each as a separate worksheet. All processing happens locally in your browser—no file uploads, fully private and free.
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点击选择，或把多个 Excel / CSV 拖到这里
把多个表格合并成一个 · 全程本地处理，不上传服务器
FAQ
What are the two merge options?
One is "merge vertically into a single table," where data from multiple files is joined end-to-end; the other is "each file as a separate sheet," where each file becomes a worksheet within one Excel file.
How are duplicate headers handled?
When merging vertically, select "keep only the first header"—subsequent files' first rows will be skipped automatically.
Can I adjust the merge order?
Yes. Use the up/down arrows in the list to reorder files—the merge will follow this sequence.
Are files uploaded to servers?
No. All merging is done entirely in your browser—your files never leave your device.
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