CSVXLSX
CSV → Excel
Wrap a CSV into a real Excel workbook — numbers and dates are recognised, columns are auto-sized and the header row is frozen.
Drag a file here
Accepts CSV · nothing is uploaded, everything runs on your device
Free, no credits
This converter never charges credits. Only LaTeX ↔ Word does.
Private by design
Your file is processed inside this page — it is never uploaded to a server.
Honest results
Every run reports what was converted and anything worth checking.