Excel to Parquet Converter
/excel-to-parquetConvert Excel workbooks into compressed Apache Parquet columnar files for analytics pipelines and queries.
Spreadsheets are edited by people, but high-performance queries need Parquet. This converter compresses Excel workbooks into columnar Parquet files for analytics pipelines. The schema is derived automatically from the sheet's headers. Everything runs locally on your device.
- 01Upload
- 02Configure
- 03Run
- 04Download
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Your Excel file is converted entirely in your browser — it never leaves your device.
FAQ
Frequently asked questions
Everything you need to know about excel to parquet converter.
Which sheet is converted?
The first sheet of the workbook is converted, and its header row becomes the Parquet column names for the output table.
What happens to empty cells?
Empty cells become null values in the Parquet file, preserving the table structure exactly as it appears in the sheet.
What about formatting and formulas?
Only cell values are exported; colors, formulas, and merged cells are ignored, which keeps the Parquet file lean and clean.
Why convert Excel to Parquet?
Parquet compresses far better than .xlsx and lets Spark, DuckDB, and cloud warehouses scan the data column-wise much faster.
Does the conversion preserve types?
Values are exported as they appear in the sheet; numerical cells stay numeric while text stays text in the resulting Parquet schema.
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