Sheet Workbook Section

Offset Size Description

0000 B 02 (no Sheet name offset) or 04 (with Sheet Name offset)

0000 Offset Offset of the Sheet Info Section

0004 Offset Offset of the Sheet Formula List

0008 Offset Offset of the Sheet Worksheet List

000C Offset Offset of the Sheet Variable List

0010 * Offset Offset of the Sheet Name Section

0014

The offset to the Sheet Name Section is only present if the first byte is 04. Perhaps this is only used if there are no graphs defined?