Are my Parquet files uploaded anywhere?

No. This conversion runs entirely inside your browser, so the file never leaves your device. You can confirm it yourself: open the network tab of your browser's developer tools and watch that nothing is sent while the file converts.

Is converting Parquet to XLSX free?

Yes, without a limit on how many files you convert and with no watermark on the result. Files up to 100 MB are covered by the free plan.

Does converting Parquet to XLSX lose quality?

No. XLSX stores the same content without discarding anything, so the result is identical in quality to the original.

Do I need to install anything to open XLSX files?

No installation is needed for the conversion itself — it runs in the browser you already have. Opening the XLSX afterwards needs whatever software normally handles Excel Workbook on your device.

ParquettoXLSX

Convert Parquet to XLSX

Up to 3 files at once, 100 with Pro. Mixed formats are fine.

Parquet to XLSX conversion is not running yet. This page describes what it will do; the Parquet conversions that work today are linked at the bottom.

What Parquet and XLSX are for

Columnar storage for large datasets. Far smaller and faster to query than CSV.

The Excel format since 2007. Several sheets, formulas, formatting.

How to convert Parquet to XLSX

Drop your Parquet file onto this page, or click to pick one.
Choose XLSX as the target. The conversion runs inside your browser — the file is never uploaded.
Download the finished XLSX file.

Parquet vs XLSX: what changes

Parquet compared with XLSX
	Parquet	XLSX
Full name	Apache Parquet	Excel Workbook
File extension	.parquet	.xlsx
Media type	application/vnd.apache.parquet	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Compression	Lossless — nothing is discarded	—

Quality: Nothing is lost. The result holds exactly the same picture, text or data as the original.
Where it runs: This conversion is not available yet. The page describes what it will do once the engine ships.

Parquet to XLSX: common questions

Are my Parquet files uploaded anywhere?: No. This conversion runs entirely inside your browser, so the file never leaves your device. You can confirm it yourself: open the network tab of your browser's developer tools and watch that nothing is sent while the file converts.
Is converting Parquet to XLSX free?: Yes, without a limit on how many files you convert and with no watermark on the result. Files up to 100 MB are covered by the free plan.
Does converting Parquet to XLSX lose quality?: No. XLSX stores the same content without discarding anything, so the result is identical in quality to the original.
Do I need to install anything to open XLSX files?: No installation is needed for the conversion itself — it runs in the browser you already have. Opening the XLSX afterwards needs whatever software normally handles Excel Workbook on your device.