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Excel to Parquet Converter Overview

Convert Excel spreadsheets (.xlsx, .xls) to Apache Parquet format online. Perfect for transforming business reports, data exports, and spreadsheets into efficient columnar storage for analytics. Powered by DuckDB-WASM for fast, private, local conversion in any modern browser on Windows, macOS, and Linux.

Seamless Excel Import

Automatically reads Excel worksheets and preserves column names and data types. Supports both .xlsx and .xls formats with formula evaluation and data extraction.

Analytics-Ready Output

Convert spreadsheet data to columnar Parquet format optimized for analytics tools like Spark, Pandas, and DuckDB. Choose compression to reduce file size significantly.

FAQ

How do I convert an Excel file to Parquet format online?
Upload or drag your .xlsx or .xls file into the converter. The tool automatically reads the first worksheet, detects the schema, and converts your data. Then click 'Download Parquet' to export.
What Excel file formats are supported for Parquet conversion?
Both modern Excel (.xlsx) and legacy Excel (.xls) formats are supported. The converter reads the first worksheet by default and preserves column names and data types.
Where is my Excel data processed during conversion?
All conversion happens locally in your browser via WebAssembly. Your Excel file is never uploaded to any server, ensuring complete privacy for sensitive business data.
Can I convert Excel files with formulas and formatting to Parquet?
The converter extracts the calculated values from cells. Formulas are evaluated and their results are stored in Parquet. Formatting (colors, fonts) is not preserved as Parquet is a data-only format.
How do I handle large Excel spreadsheets when converting to Parquet?
The tool efficiently processes large Excel files in the browser. For very large files (100k+ rows), the conversion may take a few seconds. Choose Zstandard compression to minimize the output Parquet file size.