Open XLSB file

Microsoft Excel binary workbook

What is xlsb file? Understanding and opening xlsb files

xlsb file icon Are you facing difficulties opening xlsb files on your computer, or wondering exactly what xlsb file is?
We've got the best software solutions for opening xlsb files effortlessly.

Microsoft Excel binary workbook

Files with xlsb extension is used by Microsoft Excel spreadsheet editor distributed with the Microsoft Office. An xlsb file contains Excel workbook stored in a binary file format (BIFF12). The BIFF12 binary format is used for data that can not be stored in the Open XML text format.

Further details

The xlsb file extension is associated with Microsoft Excel, one of the most popular and powerful tool you can use to create format spreadsheets, graphs and much more.

The xlsb files are used in Microsoft Excel 2007, 2010, 2013 and 2016 for Workbooks, spreadsheet document files saved in the binary format (BIFF12), instead of the new Open XML xlsx Excel workbook file format.

The basic purpose of both files is the same, however the *.xlsb files are a little larger and operate more efficiently in Microsoft Excel.

MIME type used for .xlsb file type:
application/vnd.ms-excel.sheet.binary.macroEnabled.12

Open xlsb file with:

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Microsoft Excel

A popular spreadsheet application distributed with Microsoft Office suite

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Office 365

Subscription-based service for Microsoft Office applications

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Microsoft Excel for Mac

A popular spreadsheet application from the Microsoft Office suite

What file extension actually is?

Simply put, file extensions are the characters after the dot in the computer file name, so for example document-name.pdf has file extension „pdf“. This helps Windows to identify which program should be used to open the file.

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