CSV to Excel
Convert CSV files to .xlsx
Free forever — no sign-up, nothing uploaded. Files never leave your device.
CSV to Excel
Convert CSV files to .xlsx
Drop your file here
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Browse filesdocument.pdf
1.2 MB
report.pdf
860 KB
100% private
Nothing is uploaded — everything runs in your browser.
Free forever
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Local processing
Processing time depends on your input and device.
About this tool
Turn one or more CSV files into a single Excel workbook, one sheet per file — all in your browser.
CSV to Excel converts comma-separated value files into a real Excel workbook (.xlsx). Upload one or more CSV files and each becomes a named sheet — perfect for bundling exports, consolidating weekly reports, or preparing data for pivot tables and charts.
The converter parses CSV robustly (quoted fields, commas inside quotes, escaped quotes) and detects numeric values so numbers stay numbers when the workbook opens. Generation is fully client-side: your data, which can be sensitive business records, never leaves your browser.
Key features
Everything you get with CSV to Excel — no premium upsell.
Convert one or more CSV files to .xlsx
Each CSV becomes its own named sheet
Numeric values detected and stored as numbers
Handles quoted fields and commas within quotes
Multiple files bundle into a single workbook
100% client-side — no data upload
How to use CSV to Excel
Follow the steps below to use the tool.
- 1
Add CSV files
Click Add CSV file(s) and select one or more .csv files.
- 2
Check the sheets
Review the pending files — each one becomes a sheet named after the file.
- 3
Convert
Click Convert to .xlsx and the workbook is built in your browser.
- 4
Download
Save the .xlsx and open it in Excel or any spreadsheet app.
Still free, still private — your files never leave your device.
Launch CSV to ExcelFrequently asked questions
Quick answers before you launch the tool.
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