XLSB File Documentation

Overview

Feature Value
File Extension .xlsb
Format Type Binary
Full Name Excel Binary Workbook
Developer Microsoft
First Introduced Excel 2007
Supports Macros Yes
Compared to XLSX Faster and smaller files
Largest Sheet Size 1,048,576 rows by 16,384 columns
Compression Binary Index compression
Encryption Supported
OpenXML No
Compatibility Primarily with Microsoft Excel
Advantages Over XLSX Better performance for large datasets
Disadvantages Less compatibility with non-Microsoft software
MIME Type application/vnd.ms-excel.sheet.binary.macroEnabled.12
Features Supports advanced formatting, formulas, and VBA macros
Primary Use Data analysis and reporting
Accessibility Needs Microsoft Excel or compatible viewer
Can contain Text, numbers, formulas, charts, images
Binary vs XML Significantly reduces file size and increase processing speed compared to XML-based formats