PC.net

.xlsb

File Type Excel Binary Spreadsheet IconExcel Binary Spreadsheet
File Format Proprietary (Microsoft)
Usage Referenced by an application; not meant to be opened manually; may run a program or script when opened
Rank ★ ★ ★  Common
Description

Excel spreadsheet saved in the Office 2007 binary format (BIFF12); differs from the standard Excel 2007 format (.XLSX), which saves data as text using the Open XML format

Open With
Windows

IconMicrosoft Excel

IconOpenOffice Calc

macOS

IconMicrosoft Excel

IconOpenOffice Calc

Unix

IconOpenOffice Calc

Updated 2007
Information from the PC File Extensions Reference
https://pc.net/extensions/file/xlsb
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