Excel Row Batch Copier

Moving a large Excel dataset sheet by sheet is a common workaround for the row-per-sheet limit, but doing it manually means repeatedly selecting, copying, and pasting large ranges, a process that gets slower and more error-prone with every additional sheet.

Million by Million Rows Copier copies Excel rows in large chunks specifically to make this sheet-by-sheet process painless. Load your data, by pasting with Ctrl+V or loading an XLSX or XLS file, then let Copy Next Chunk build each row batch for you, ready to paste directly into the next sheet.

Every chunk includes the header row automatically, so each new sheet you paste into starts with proper column labels, no manual copying of the header row separately from the data rows.

Because chunk size can be set anywhere from 1 to 10,000,000 rows, you can tune each sheet's row count to whatever makes sense for your specific workbook, rather than being locked into a single fixed size for every sheet.

Each chunk is also saved to disk automatically in your chosen format, XLSX among them, the moment it's copied, giving you both the pasted sheets in your workbook and a separate, permanent file record of every chunk.

Everything runs locally on your PC, aside from a one-time license check. Loading, chunking, and exporting all happen offline, with your Excel rows never uploaded anywhere. Data analysts and engineers moving large extracts between tools, database administrators handing off query results, finance and accounting teams transferring big ledgers, operations and reporting staff assembling data from many sources, and anyone who has ever tried to paste more rows into Excel than it was willing to accept, all use the same underlying workflow. Virtual rendering keeps the loaded-data view smooth even at the upper end of the app's capacity, and every worker thread runs its own SQLite connection in WAL mode, so nothing here depends on your PC having an unusual amount of memory to spare.

1. Install Million by Million Rows Copier on your Windows PC.
2. Paste your Excel data with Ctrl+V or load an XLSX or XLS file.
3. Click Start Copying Out to lock the dataset in place.
4. Click Copy Next Chunk to build the first row chunk.
5. Paste that chunk into a new sheet in your workbook.
6. Click Copy Next Chunk for the next chunk.
7. Repeat, pasting into new sheets, until every row is placed.
8. Review the auto-saved chunks in your output folder.
9. Use Re-copy Current Chunk if your clipboard gets overwritten mid-paste.
10. Click Open Output Folder to review everything you've saved so far.

• Builds each row chunk automatically, ready to paste per sheet
• Header row included automatically in every chunk
• Chunk size adjustable from 1 to 10,000,000 rows
• Auto-saves each chunk to disk as XLSX or other formats
• No manual selecting and copying of large row ranges
• Handles Excel datasets up to 50,000,000 rows total
• Runs fully offline aside from a one-time license check
• One-time purchase for Windows, with Gumroad license activation
• Choose your own output folder, or use the default under My Documents
• Works with files on local drives, external drives, and network shares