Sanye Hub
Batch-convert xlsx/xls to UTF-8 CSV locally; single download or ZIP; files never leave your device…
What you can do
- Open Excel to CSV and retry with a small known-good sample.
- Confirm you are not hitting this limit: Only .xlsx and .xls; max 2MB per file; up to 10 in the list.
- Check the FAQ below—encryption, size limits, and format mismatches are the usual causes.
- Still stuck? Try a private window, or read the full guide /#article/xlsx2csv.
FAQ
What limitations should I know?
Only .xlsx and .xls; max 2MB per file; up to 10 in the list.
When might it fail?
Only the first worksheet of each workbook is exported.
What else should I watch for?
Processing is local; ZIP download loads JSZip from CDN.
Any other important notes?
UTF-8 BOM helps Excel open Chinese text correctly.