Parquet to Excel Converter
Handle Million Rows in Your Browser

Convert Apache Parquet files to Excel (XLSX) format instantly in your browser. DuckDB-WASM reads Parquet natively — Snappy, Gzip, and Zstd compression are automatically handled. No file upload, no server processing.

Drag & drop your file here, or browse

Accepts: .parquet (up to 50 MB)

Max 10 million cells (rows × columns)

Your data stays in your browser. By using this tool, you agree to our Terms and Privacy Policy.

How to Convert Parquet to Excel

1

Drag & drop your .parquet file or click "browse" to select it.

2

DuckDB-WASM reads the Parquet file natively, auto-detecting schema and decompressing data.

3

Preview the output with column types and row data.

4

Click the download button to save the Excel (.xlsx) file.

Features

100% Browser-Based

Your data never leaves your device. Processed locally via WebAssembly — no server upload, no privacy concerns.

Native Parquet Reading

DuckDB-WASM reads Parquet files natively with full schema detection. Snappy, Gzip, and Zstd compression are automatically handled.

Type-Aware Excel Output

Dates, timestamps, numeric values, and boolean values from the Parquet schema are correctly formatted in Excel with appropriate cell types.

Parquet vs Excel (XLSX): What's the Difference?

Apache Parquet is a columnar binary format optimized for large-scale data analytics. Excel (XLSX) is a rich binary format with formatting, formulas, and multiple sheets — the standard tool for business data.

ParquetExcel (XLSX)
Primary useAnalytics & data pipelinesBusiness reports, spreadsheet editing
Data typesStrict typed columnsNumbers, dates, booleans, text
FormattingNoneCell styles, colors, borders
FormulasNot supportedFull formula support
EcosystemSpark, BigQuery, DuckDB, PolarsMicrosoft Office, Google Sheets

Benefits of Converting Parquet to Excel

  • Easy to share with business teams — Excel is the universal business tool
  • Start using formulas, sorting, and filtering immediately
  • Dates and numbers are preserved as native Excel types

Frequently Asked Questions

Is my data uploaded to a server?
No. Your file never leaves your browser. All processing happens locally using DuckDB-WASM. No data is sent to any server.
What is the row limit for Excel output?
Excel supports up to 1,048,575 data rows. If your Parquet file exceeds this limit, consider converting to CSV or JSON instead.
Are dates formatted correctly in Excel?
Yes. Date columns use yyyy-mm-dd format and timestamp columns use yyyy-mm-dd hh:mm:ss format with proper Excel cell styling.
What browsers are supported?
Any modern browser with WebAssembly support: Chrome, Firefox, Edge, Safari (14+).

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