Drop your Excel file here
or click to browse (.xlsx, .xls, .xlsm, .csv — max 15 MB)
workbook.xlsx
0 KB
Ready. Upload an Excel workbook to begin.
Data Preview 0 rows
Conversion summary
Limits & notes
- Supported: .xlsx, .xls, .xlsm, .csv.
- Select one or more sheets from the dropdown. Single Parquet merges selected sheets using the first sheet's columns.
- Auto-detect writes integer ID columns as INT64 so Power BI sorts them numerically (1, 2, 10), not as text (1, 10, 100).
- Single Parquet keeps all rows in one
.parquetfile; Batch ZIP splits by your Split rows value into multiple Parquet files. - Uploaded files are processed on this server only (no third-party API) and deleted after download.
- Your plan (Free): up to 15 MB and 50,000 rows per sheet.
| Plan | File size | Row limit per sheet |
|---|---|---|
| Free (you) | 15 MB | Up to 50,000 |
| Pro | 30 MB | Up to 100,000 |
| Premium | 60 MB | Up to 250,000 |
Done
How to Use
- Upload an Excel file (.xlsx, .xls, .xlsm, or .csv).
- Select one or more worksheets from the dropdown.
- Choose compression, column types, and download package (single Parquet or Batch ZIP).
- For Batch ZIP, set Split rows (default 500), then Convert to Parquet.
- Review the data preview and summary, then Download. Use Clear to start over.
Pro Tips
- Gzip compression shrinks Parquet files for download; choose None for fastest write.
- All-strings mode is safest for mixed Excel cells; Auto-detect uses numbers/booleans when possible.
- Choose Batch ZIP and set Split rows to download multiple smaller Parquet files in one ZIP.
- Turn on First row is header when your sheet has column titles.
- Upload size follows the limit your admin set for your plan (Parquet defaults: Free 25 MB / Pro 50 MB / Premium 100 MB).
FAQs
QWhich Excel formats are supported?
A
.xlsx, .xls, .xlsm, and .csv.
QCan I convert more than one sheet?
A
Yes. Select multiple worksheets from the dropdown; single-file mode merges them using the first sheet's columns.
QWhat is Batch ZIP?
A
It splits each sheet into multiple Parquet files by your Split rows value and packs them into a ZIP for download.
QWhat is Parquet?
A
Apache Parquet is a columnar binary format widely used in analytics (Spark, DuckDB, Pandas).
QWhat are the plan limits?
A
Recommended row limits per sheet: Free 50,000 / Pro 100,000 / Premium 250,000. File size follows the upload limit your admin set for this tool and your plan.