This article also refers to documentation about the BIN format, too lengthy to reproduce here.Ģ. XML parts within the package, you’ll find. So it’s basically a ZIPĬontainer, and you can open it with any ZIP tool to see what’s inside.īut instead of. The XLSB format (also sometimes referred to as BIFF12, as in “binaryįile format for Office 12”) uses the same Open Packaging Convention Like Open XML, it’s aįull-fidelity file format that can store anything you can create inĮxcel, but the XLSB format is optimized for performance in ways that Some of these have been mentioned in other answers to this question but without reproducing the essential content. Just for posterity, here's the text from several external sources regarding the Excel file formats. When cracking open the binary file, it seems to condensedly mimic the OOXML file structure 1-to-1: Blog article from xlsb does not support Ribbon code is newer than the upper citation, but I figure that forum source of yours is just wrong. More precisely,īoth formats support exactly the same feature setĬites this blog post from.
(Hardware: Core2Duo 2.3 GHz, 4 GB RAM, 5.400 rpm SATA II HD Windows 7, under somewhat heavy load from other processes.)īeside this, there should be no differences. xlsb and saves 2 times longer and has 1.5 times a bigger file.
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