Browser-based viewers parse files with JavaScript on your device. That keeps data local, but it also means memory and CPU set the ceiling. This app applies row and byte caps on import so typical sessions stay responsive. If you hit a cap, the honest fix is usually to split the extract by date, region, or entity in your warehouse or source system, then review each slice here.
What to expect
- Very wide files cost more than very tall ones because every visible column participates in layout work.
- Pagination in the grid reduces how many rows the UI treats as active at once, which helps scrolling and editing stay smooth.
- Closing other heavy tabs and using an up-to-date browser improves stability on large sessions.
Check the in-app hints and import errors when a file is rejected. They describe the constraint so you can adjust the export, not guess.
