Excel/CSV Merger
Combine multiple Excel and CSV files into a single workbook
Merge several Excel (.xlsx, .xls) and CSV files into one Excel workbook. Choose whether to keep each file on its own sheet or stack all rows together on a single sheet.
도구를 불러오는 중…
🔒 Everything runs 100% in your browser. Your files and input are never uploaded to any server.
How to use
- Drag and drop your Excel and CSV files, or click to select several at once.
- Pick a merge mode (keep separate sheets / combine into one sheet) and set the output file name.
- Click the "Merge" button to combine them.
- Download the finished Excel file.
FAQ
- What happens if two sheets have the same name?
- Duplicate names are automatically numbered, so no sheet is overwritten and all of them are preserved.
- Can I merge CSV and Excel files together?
- Yes. You can mix .xlsx, .xls, and .csv files and combine them all into a single Excel workbook.
- Are my files uploaded to a server?
- No. All merging happens entirely in your browser, and your data is never sent anywhere.