How do I convert my .parquet file to CSV?
Drop your file here, or choose it to preview its columns and rows in this browser. Nothing is uploaded. Review the table, then download CSV. See the download limits below.
Choose a file to begin.
What does a .parquet file contain?
Apache Parquet is a column-oriented data file format with encoded column types. xmetric reads supported .parquet tables locally in the browser.
Format source: Apache Parquet format documentation. The source describes the format; xmetric-specific behavior is stated separately.
How does Apache Parquet compare with CSV?
Choose a format for the information you need to retain. A flat table cannot preserve a report layout, spreadsheet formatting or every source type.
| Format | Structure | Type or compatibility consideration |
|---|---|---|
| Apache Parquet | Binary columnar table | Stored column types; nested columns are unsupported here |
| CSV | Delimited text rows | Inferred on import; no stored schema |
Sources: Apache Parquet format documentation; CSV documentation.
What should I check before using my .parquet result?
Exports are limited to 100,000 rows. Check the preview and inferred column types before downloading. Browser memory limits apply. CSV output cannot preserve binary format types.
Compare column names, nulls and important values with your source before sharing a table or chart.
What limits apply to my data?
These limits apply to tabular imports, not native Power BI or Tableau report compatibility. File size and browser memory limit what xmetric can open. Table downloads reject oversized results instead of silently dropping rows.
| Limit | Current behavior |
|---|---|
| File size | 32 MiB on constrained devices; 160 MiB otherwise |
| Imported rows | Up to 3,500,000 |
| Preview page | 100 rows |
| Download | All rows, up to 100,000 rows; no sampling |
Source: xmetric limits and verification record, checked 2026-10-27. These are product limits, not file-format limits.
Can I open my .parquet file without uploading my data?
Yes. xmetric processes the selected local file in your browser. Opening the file does not upload it; saving a workbook online is a separate action.
What should I check after importing .parquet?
Check types and nulls after import; a CSV export has no stored Parquet schema.
Does the CSV download include every row?
Yes, within the 100,000-row download limit. Larger downloads are rejected; the converter does not return a silently sampled file.
Use Chart in xmetric above to turn the loaded table into a view you can edit. Browse file viewers or convert a table.