Speed matters most when a large dataset needs to move right now, not after a slow initial import process finishes, and not with lag between finishing one chunk and being ready to copy the next.
Million by Million Rows Copier copies large datasets quickly through parallel background processing. Loading, chunk-building, and exporting all run on background threads, and each worker thread gets its own SQLite connection running in WAL mode, so building the next chunk and auto-saving the previous one genuinely happen at the same time.
Load your data once, by pasting with Ctrl+V or loading a file in any of 33 supported formats, and Copy Next Chunk is ready to quickly produce each piece, by default 1,000,000 rows, with the header row included automatically.
Because there's no dependency on an internet connection or an external service, the entire process, loading, chunking, and copying, happens as fast as your own PC's hardware allows, without any network-related delay.
Chunk size adjusts anywhere from 1 to 10,000,000 rows, so you can tune the size of each fast copy to whatever suits your workflow best, without sacrificing the underlying speed of the process.
Everything runs locally on your PC, aside from a one-time license check. Loading, chunking, and exporting all happen offline, with nothing uploaded during the copying process. 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.
- Install Million by Million Rows Copier on your Windows PC.
- Paste your data with Ctrl+V or load a file.
- Click Start Copying Out to lock the dataset in place.
- Click Copy Next Chunk to quickly build and copy each piece.
- Paste that chunk into your destination.
- Click Copy Next Chunk again for the next piece.
- Repeat quickly through the rest of the dataset.
- Review the auto-saved chunks in your output folder.
- Use Re-copy Current Chunk if your clipboard gets overwritten mid-paste.
- Click Open Output Folder to review everything you've saved so far.
- Parallel worker threads with independent SQLite connections
- Chunk building and auto-save happen simultaneously
- No network-related delay, since everything runs locally
- Header row included automatically in every chunk
- Background processing keeps the interface responsive at speed
- Chunk size adjustable from 1 to 10,000,000 rows
- 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
What makes this copier fast specifically?
Parallel worker threads with independent SQLite connections in WAL mode let chunk building and disk-saving genuinely run at the same time, rather than waiting on each other.
Does speed depend on internet connection quality?
No, aside from a one-time license check, the entire copying process runs locally without any network dependency.
Is there a delay between finishing one chunk and starting the next?
No, background processing means the app is ready for the next Copy Next Chunk click as soon as the current chunk finishes.
Can I adjust chunk size without affecting the underlying speed?
Yes, chunk size can be adjusted from 1 to 10,000,000 rows without changing the fundamentally fast, parallel nature of the process.
Does this work on both Windows 10 and Windows 11?
Yes, Million by Million Rows Copier is built and tested for both Windows 10 and Windows 11.
Is my data safe when using this tool?
Yes, all processing happens locally on your PC; no data is ever uploaded, so proprietary or sensitive records stay fully under your control.
Where do saved chunks and exports go by default?
A default output folder under My Documents is set automatically at startup, though you can choose a different folder before loading begins.
Can I use this on files stored on an external or network drive?
Yes, files on local drives, external drives, or mapped network shares all load the same as any local file.
What happens if the app is closed partway through a session?
Each chunk is saved to disk automatically the moment it's copied, so a closed app or crash never loses more than the chunk that was in progress.
Is there a trial version available before buying?
Check the product page on turbo-soft.com for current trial availability and details.
Ready to quickly copy your large datasets, fully offline?