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Free converter

XLSB to XLSX

Anyfile converts an Excel binary workbook to an Excel workbook for free, right in your browser: the file is never uploaded.

Files are converted in your browser and never uploaded. By using Anyfile you agree to the Terms of Use.

What changes from XLSB to XLSX

Values and formulasKept, with number formats and every sheet
Pictures and chartsKept

When to use XLSX: Sharing spreadsheets with anyone who uses Excel, Numbers, Google Sheets or LibreOffice.

The two formats

.xlsb

Excel binary workbook

An Excel workbook saved in a binary form instead of XML. It keeps every workbook feature, macros included, but files are often smaller and open and save faster.

Very large workbooks where file size and loading speed matter.

Opens in Excel for Windows and Mac, LibreOffice Calc

About XLSB files

.xlsx

Excel workbook

The standard Excel file since Office 2007: a ZIP of XML parts holding sheets, cell values, formulas, styles and charts. It is part of the Office Open XML standard (ECMA-376).

Sharing spreadsheets with anyone who uses Excel, Numbers, Google Sheets or LibreOffice.

Opens in Excel, Numbers, Google Sheets, LibreOffice Calc

About XLSX files

Questions

How do I convert XLSB to XLSX?

Drop your XLSB file on this page, or choose it. Anyfile converts it on your device in a moment and the XLSX downloads straight away. To change it first, open it in the spreadsheet editor.

Is my XLSB file uploaded anywhere?

No. The file is read and converted by your own browser, and nothing is sent to a server. You can check: open your browser’s developer tools, go to Network, and convert a file. No upload appears.

Can I convert several XLSB files at once?

Yes. Drop them together and you get one ZIP with every XLSX inside.