Trying to export more than 1 million rows in Excel runs into the same wall as importing them: a worksheet cannot represent more than 1,048,576 rows, so anything you try to save from a sheet that size will already have lost data before export even happens.
Million by Million Rows Copier avoids this by keeping the full dataset, up to 50,000,000 rows, in a local SQLite file rather than in an Excel worksheet, so nothing is truncated before you're ready to export.
From there, you have two options: use Copy Next Chunk to paste 1,000,000-row pieces into separate Excel sheets, or skip Excel and use Export Everything to save the complete dataset directly to CSV, XLSX, JSON, SQL, TSV or XML.
Multi-sheet and part-file splitting is handled automatically during export, so a dataset far larger than one worksheet can still produce a clean, organized set of output files.










- Load your full dataset into Million by Million Rows Copier before it ever touches an Excel worksheet.
- Choose whether you want the output in Excel, or in another file format entirely.
- For Excel, use Copy Next Chunk repeatedly and paste each block into a new sheet.
- For other formats, use Export Everything and pick CSV, XLSX, JSON, SQL, TSV or XML.
- Confirm the exported row count matches the total reported after loading.
- Keeps the full dataset intact in local storage before any export step
- Export Everything supports CSV, XLSX, JSON, SQL, TSV and XML
- Automatic multi-sheet and part-file splitting for datasets beyond Excel's limit
- Copy Next Chunk provides an Excel-specific export path in 1,000,000-row pieces
- Handles up to 50,000,000 rows without losing a single row along the way
- Progress feedback during export, so long exports are never silent
Why does exporting from Excel lose rows past 1 million?
If the data was already loaded into a worksheet, anything past 1,048,576 rows was never stored in the sheet to begin with, so it can't be exported.
How do I export more than 1 million rows without that loss?
Load the original data into Million by Million Rows Copier first, which keeps the full row count intact before you export or paste anything.
Can I export directly to formats other than Excel?
Yes, Export Everything saves the complete dataset to CSV, XLSX, JSON, SQL, TSV or XML without going through Excel at all.
Does the export process show progress for very large datasets?
Yes, export progress is shown throughout, so you can track long-running exports instead of wondering if the app has stalled.
Export more than 1 million rows cleanly, whether your destination is Excel or somewhere else.