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2.5.14 Determining the nFib

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The nFib value specifies the version number of the file format that is used. The proper nFib value for the current document is determined in the following way:

  1. Read the FIB from offset zero in the WordDocument Stream.

  2. Check the value of FIB.cswNew.

  • If the value is 0, nFib is specified by FibBase.nFib.

  • Otherwise, the value is not 0 and nFib is specified by FibRgCswNew.nFibNew.