What does B4 mean in File Extensions?

This page is about the meanings of the acronym/abbreviation/shorthand B4 in the Computing field in general and in the File Extensions terminology in particular.

Nuts and Bolts file (Helix)

Computing » File Extensions


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What does B4 mean?

paper size defined by ISO 216 as 250mm u00D7 353mm or 9.8 in u00D7 13.9 in.

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"B4." Abbreviations.com. STANDS4 LLC, 2015. Web. 1 Aug. 2015. <http://www.abbreviations.com/term/40300>.