CSV to Excel
Convert one or more CSV files into an Excel workbook. Each CSV becomes a sheet.
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About CSV to Excel
CSV to Excel converts one or more CSV files into a single XLSX workbook, with each CSV becoming its own sheet. It's the easy way to bundle several exports into one tidy spreadsheet that opens cleanly in Excel, Numbers, or Google Sheets. The workbook is built in your browser, so your CSV data is never uploaded.
- Category
- convert
- Input
- Accepts: text/csv or text/plain.
- Output
- Outputs: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.
- Cost
- Free, runs in your browser
- Memory
- low
Privacy: CSV to Excel runs entirely on your device. Files
you provide never leave your browser — no uploads, no server,
no tracking. The page works offline once loaded.
Common uses
- Combine monthly CSV exports into one workbook with a sheet per month
- Turn a raw CSV dump into a proper .xlsx file for a non-technical colleague
- Bundle related CSVs — say orders, customers, and products — into a single multi-sheet workbook
- Convert a database or script CSV export into Excel for review and annotation
- Merge several report CSVs into one file before emailing it
- Give a CSV the native spreadsheet format a client asked for
Frequently asked questions
Can I add more than one CSV to a workbook?
Yes. Each CSV you add becomes its own sheet in the resulting workbook.
What format is the output?
A modern Excel .xlsx workbook.
How are the sheets named?
Each sheet is named after its source CSV file.
Are my CSVs uploaded anywhere?
No. The workbook is assembled in your browser, so the data stays on your device.
Will it parse quoted fields and commas inside values correctly?
Yes. Standard CSV quoting is handled, so commas and line breaks inside quoted fields are kept intact.
Keywords
- csv
- excel
- xlsx
- convert
- spreadsheet
- table