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2.4.3 MsoCrc32Compute

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The purpose of this algorithm is to calculate a cyclic redundancy check (CRC) checksum. Given a data stream, this function computes a 32-bit checksum using the polynomial x32+x7+x5+x3+x2+x+1. The algorithm uses big-endian bit ordering in a byte (most significant bit first). Normal representation for a polynomial is xAF.