Excel to Parquet Converter - Free Desktop App
Convert Excel to Parquet offline. Break the 1M row limit. Get 10-100x faster analysis. Work with massive datasets Excel can't handle. 100% private, no upload.
Convert to High-Performance Format
Break Excel's 1M row limit
Your Excel files will be converted to Parquet format for 10-100x faster queries. Handle billions of rows that Excel can't open.
Note: Parquet breaks through Excel's row limits and provides dramatically faster data analysis.
Why Desktop Excel to Parquet Converter Beats Online Tools
| Feature | Online Tools | Diwadi Desktop |
|---|---|---|
| Upload Required | ❌ Required | 🎯 Never |
| File Size Limit | ❌ 50MB max | ♾️ Unlimited |
| Speed | ⏳ Slow (upload/download) | ⚡ Instant |
| Batch Processing | ❌ 1 file | ✅ 1000s |
| Privacy | ⚠️ Risky (cloud upload) | 🔒 100% Local |
| AI Features | ❌ No | 🤖 Yes |
| Offline | ❌ No | ✅ Yes |
| Cost | Free | Free ✅ |
Excel vs Parquet: When to Upgrade
| Feature | Excel (XLSX) | Parquet |
|---|---|---|
| Max Rows | 1M (hard limit) | Billions+ |
| Query Speed (10M rows) | Can't open | Instant (<1 sec) |
| File Size (10M rows) | Can't create | 500 MB |
| Formulas | Yes | No (values only) |
| Formatting | Yes | No |
| Best For | Business reports (<1M rows) | Big data analytics |
Recommendation
Use Excel for: Business reports, presentations, files <100K rows, when you need formulas/formatting.
Use Parquet for: Data analysis, files >1M rows, repeated queries, when speed matters. Convert results back to Excel for sharing.
How It Works
Download & Install
Takes just 30 seconds. No account, no credit card required.
Browse & Select Your Excel Files
Navigate your files like a regular file browser. Batch processing supported.
Get Parquet Files (unlimited rows, 10-100x faster) (Instant)
Processing happens locally on your computer. No upload wait.
Why Choose Diwadi Desktop?
Privacy First
Files never leave your computer. No cloud upload, no data collection, 100% local.
Lightning Fast
Process files 10x faster than online tools. No upload wait, no download wait.
No Limits
Convert unlimited files of any size. Batch process thousands in one click.
AI-Powered
Smart formatting detection, auto-cleanup, better accuracy.
Works Offline
No internet required. Perfect for flights, secure environments.
Free to Use
No trial limits, no watermarks, no credit card required.
Frequently Asked Questions
Why convert Excel to Parquet?
Convert Excel to Parquet to break Excel's 1M row limit, get 10-100x faster queries (especially column operations), reduce file size by 80-90%, and work with billions of rows. Perfect when Excel is too slow or can't open your data.
How is Parquet better than Excel for large data?
Parquet has no row limits (vs Excel's 1M), queries are 10-100x faster for column operations, files are 80-90% smaller, and it handles billions of rows efficiently. Excel is great for business reports, but Parquet is designed for big data analytics.
Will formulas be preserved?
Parquet stores values, not formulas. When you convert Excel to Parquet, formulas are calculated and their results are saved. This is perfect for data analysis where you need values, not the calculation logic.
What happens to multiple sheets?
Each Excel sheet is converted to a separate Parquet file. For example, if you have 'Report.xlsx' with 3 sheets, you'll get 'Sheet1.parquet', 'Sheet2.parquet', and 'Sheet3.parquet'.
Can I convert back to Excel?
Yes! Diwadi supports bidirectional conversion. Convert Parquet back to Excel anytime for business reporting or sharing with Excel users. Note: Excel has a 1M row limit, so large Parquet files will be truncated or split.
How much faster will my analysis be?
Typically 10-100x faster for filtering, searching, and aggregations, especially on column-specific operations. For example, filtering 50M rows by a column: Excel can't open it (over 1M limit), Parquet filters in 2 seconds.
What tools can read Parquet files?
Parquet is supported by: Diwadi (GUI), Python pandas, Apache Spark, DuckDB, BigQuery, Snowflake, AWS Athena, Databricks, and most modern data tools. It's an industry standard.
Is Excel to Parquet conversion free?
Completely free with unlimited conversions. No file size limits, no watermarks, no credit card required.
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