A CDE Definition
(1) (Binary Interchange File Format) A spreadsheet file format that holds data and charts, introduced with Excel Version 2.2 in 1989.
(2) A novice on the Usenet bulletin board. Also spelled "B1FF," a BIFF is a newbie who tries to be "cool" by, among other things, abbreviating words with clever misspellings. See Usenet and leetspeak.
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