CSV to Excel Converter

Convert CSV files to Excel format (XLSX) directly in your browser. Auto-detect delimiters, preview data, and download formatted spreadsheets instantly. No server uploads required.

Drag & drop CSV file here

or click to browse

Or paste CSV content

Options

Delimiter

Sheet Name

First row is header

Auto-format numbers and dates

Preview

Enter CSV data or upload a file to preview

Rows

Columns

Cells

Success!

Security: Only process files from sources you trust. All processing happens locally in your browser.

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Frequently Asked Questions

Standard CSV with comma, semicolon, tab, or pipe delimiters. Auto-detection or manual selection available.

Yes! Numbers, dates, and text are auto-detected and formatted appropriately in the Excel output.

Yes. All conversion happens in your browser using SheetJS. Your files never leave your device.

Yes! Either upload a file or paste CSV content directly into the text area for conversion.

No hard limit, but browser memory applies. Files under 50MB convert quickly; larger files may take longer.

CSV contains only plain text values. Formulas aren't stored in CSV format, so there's nothing to convert.

Yes. Enter a custom sheet name in the options before converting. Default is 'Sheet1'.

UTF-8 encoding is fully supported. Special characters, accents, and non-Latin scripts convert correctly.

Currently one file at a time. For batch conversion, convert each file separately or use desktop tools.

Excel supports multiple sheets, formatting, formulas, and charts. CSV is plain text with no styling.

Preview

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