Will commas inside quotation marks be handled properly?

Yes! The CSV parser fully complies with RFC 4180 standards and correctly parses commas, escaped quotes, and multiline cells.

Is there a row limit for Excel conversion?

You can convert up to 100,000+ rows smoothly right in your web browser with instantaneous speed.

File 100% Client-Side

Convert CSV files to Microsoft Excel (.xlsx) spreadsheets with auto-formatted columns.

Zero Upload

Never leaves browser

Instant Speed

WASM accelerated

or click to browse from your device

Full Microsoft Excel (.xlsx) compatibility

Automatic column width and type detection

Interactive live table preview of rows

Direct browser conversion with zero server upload

Simple Workflow

Get results in three quick steps without any learning curve.

Upload or drop any comma-separated (.csv) file.

Preview rows and customize worksheet name if desired.

Save your formatted .xlsx spreadsheet instantly.

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