CSV to Excel / TSV Converter

Paste CSV text or upload a .csv file, preview the parsed table, and download it as an Excel spreadsheet or a tab-separated values file. Everything stays on your device.

Convert Your CSV

Choose a CSV File (optional)

Or Paste CSV Text

How It Works

The CSV text is parsed with a small state machine that understands quoted fields, commas inside quotes, and escaped double quotes.

The Excel download embeds the parsed rows inside an HTML table wrapped in a format that Excel opens natively.

The TSV download simply joins each row's fields with tab characters.

No external libraries are required. All parsing happens in your browser.

Frequently Asked Questions (FAQ)

Yes! Every string, payload, regex, or file is processed strictly inside your local browser tab using HTML5 and Web Crypto APIs.

Yes. Once loaded, all computations run entirely client-side without relying on external API requests.

Because processing happens on your machine, limits depend only on your system's available memory.

Disclaimer Notice

Technical Disclaimer: This CSV to Excel / TSV Converter processes source code and data strictly client-side. Always back up critical code before performing minification, formatting, or encoding operations.

CSV to Excel / TSV Converter

Convert Your CSV

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Disclaimer Notice