Can it handle very large sheets?

Yes — sheets of hundreds of thousands of rows open in most browsers; very big files take a little longer.

How much does it cost?

You can open your file, convert it and check or change everything in the studio before you pay anything. Downloading the finished file is part of every MojoPDF plan — start with the 7-day trial for $1 and cancel any time.

Is it safe to convert XLSB files to CSV here?

Yes. Your file travels over an encrypted connection and stays private to you — nobody else can open it. Projects you save are kept in your account until you delete them, and download links we email you expire after 7 days.

Excel Tools

XLSB to CSV

Q: Why convert XLSB to CSV?

An .xlsb workbook is Excel's binary workbook format — compact and fast for huge sheets; a CSV file is comma-separated values — one line per row, the format every database, CRM and online store imports. Exporting a sheet of a big binary workbook for a database or import.

Save a sheet of an .xlsb workbook as CSV. It opens in Mega Excel Studio, so you can check every value before you download.

Drop an .xlsb workbook

or browse from your device — Excel binary workbooks

Private & secure· Check before you download· No watermark

XLSB to CSV in three steps

Exporting a sheet of a big binary workbook for a database or import. Drop your .xlsb workbook above; it opens in Mega Excel Studio with the export window set to CSV, so you can look it over, change anything and download. The open sheet as UTF-8 CSV. A CSV file is comma-separated values — one line per row, the format every database, CRM and online store imports, and opens in Excel, Google Sheets, databases, CRMs and every importer.

Big sheets

Hundreds of thousands of rows.

Checked in Mega Excel Studio

Sort, fix and format before you download.

Why CSV

Imports into almost anything.

Frequently asked questions

Drop the .xlsb workbook in the box above and it's converted straight away. It opens in Mega Excel Studio: check it, change anything you like, then press Download to get your CSV file.