Sanye Hub

Excel to CSV — Tutorial

Use Excel to CSV to batch-convert spreadsheets to CSV in the browser…

Excel to CSV: Convert Spreadsheets Locally in Your Browser

Features

  • Click or drag to upload .xlsx / .xls (max 2MB each, multiple files).
  • Auto serial conversion: each workbook exports its first sheet as UTF-8 CSV (with BOM).
  • Task list shows waiting / converting / size-change ratio / failed; successful rows can download.
  • Convert & Download packs successful CSVs into a ZIP (failed items excluded).

Use cases

  • Export business sheets to CSV for database or ETL import.

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.