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File formats
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Microsoft
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Office
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Microsoft Excel
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XLSB, Microsoft Excel
MS-XLSB Excel Binary File Format (.xlsb) Structure Specification (2007)
MS-XLSB Excel Binary File Format (.xlsb) Structure Specification (2008-06-27)
MS-XLSB Excel Binary File Format (.xlsb) Structure Specification (2019-09-24)
