How to convert XLSB to XLS
- Add your .XLSB file - drop it in the box above or click to browse.
- Convert it to .XLS in a few seconds.
- Download your new .XLS file.
What to expect
- XLS caps each sheet at 65,536 rows - data beyond that limit is silently dropped; check your row count before converting.
- Features added after Excel 2003 - sparklines, slicers, newer chart types - may be removed or converted to static objects.
- The resulting
XLSfile may be larger than the originalXLSBbecause the older BIFF8 format is less compact.
Frequently asked questions
Do I lose macros when converting XLSB to XLS?
No - both formats support VBA macros, so any macros carry over intact. Converting to XLSX would drop them.
What happens if my workbook has more than 65,536 rows?
Rows beyond 65,536 on any sheet are silently lost. If your data exceeds that limit, convert to XLSX instead, which shares XLSB's 1,048,576-row capacity.
Why does Excel show a Compatibility Checker warning?
It lists workbook features that XLS cannot store, such as newer chart types or slicers. Review the list and decide whether to accept the downgrade or keep the XLSB.
Can I convert XLSB to XLS without Microsoft Excel?
Yes - LibreOffice Calc is a free, open-source alternative that handles most workbooks accurately.
Programs that convert XLSB: Microsoft Excel · Microsoft Excel for Mac · LibreOffice Calc · OpenOffice.org Calc
