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How to Convert Parquet to CSV - Step by Step Guide

Step 1

Upload Your Parquet File

Start by uploading your Apache Parquet file. Export your columnar data to CSV format for use in Excel, Google Sheets, and data analysis tools.

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Upload file: Click "Upload" to select a .parquet file from your system
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Drag and drop: Simply drag your Parquet file into the upload area
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Try the sample: Click "Sample" to see example output
Step 2

Automatic Conversion to CSV

The converter automatically reads your Parquet file and converts it to CSV format:

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Schema extraction: Reads column names from Parquet metadata
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Data conversion: Converts columnar Parquet to row-based CSV
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Type handling: Properly formats dates, numbers, and strings
Step 3

Preview CSV Output

Review the converted CSV data before downloading:

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Syntax highlighting: Easy-to-read CSV preview
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Row count: See total number of records exported
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Column headers: Preserved from Parquet schema
Step 4

Download CSV File

Get your CSV file ready for Excel, Google Sheets, or data analysis:

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Download CSV: Save the converted data as .csv file
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Copy to clipboard: Quick copy for pasting into applications
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Excel compatible: Open directly in Microsoft Excel or Google Sheets

Frequently Asked Questions

How do I convert Parquet to CSV?

Upload your Parquet file using the file picker. The converter automatically reads the Parquet schema and data, then converts it to CSV format. Download the resulting CSV file or copy it to your clipboard for use in Excel or other tools.

Why export Parquet to CSV?

CSV is universal and works with Excel, Google Sheets, databases, and data analysis tools. While Parquet is efficient for storage and analytics, CSV provides better compatibility and readability for sharing data, creating reports, and working with spreadsheet applications.

Can the converter handle large Parquet files?

Yes! The converter efficiently processes large Parquet files by streaming data in chunks. For extremely large files (multiple GB), consider splitting them first or using server-side processing tools for optimal performance.

Are nested Parquet columns supported?

Yes! Nested structures in Parquet (structs, lists, maps) are flattened into CSV columns. Complex nested data is converted to string representations that can be viewed in spreadsheet applications.

Is the CSV compatible with Excel?

Absolutely! The generated CSV files follow standard CSV format and can be opened directly in Microsoft Excel, Google Sheets, LibreOffice Calc, and other spreadsheet applications without any compatibility issues.

Is the Parquet to CSV converter free?

Yes, completely free with no limitations on file size, conversions, or features. No registration required. Convert unlimited Parquet files to CSV format for Excel and data analysis.

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