The Microsoft Excel File Format - OpenOffice.org

3 Formulas
3.10.3 tParen (15 H )
Parentheses. This token is for display purposes only, it does not affect the result of the token array. If it follows an
operator, the parentheses will enclose the operator and its operand(s), which in fact is the result of the enclosed
operation.
Token tParen, BIFF2-BIFF8:
Offset Size Contents
0 1 15 H
Examples for enclosed operands:
=3+(2) is represented by tInt(3), tInt(2), tParen, tAdd;
=(3)% is represented by tInt(3), tParen, tPercent;
=SUM(3,(2)) is represented by tInt(3), tInt(2), tParen, tFuncV(SUM).
Examples for enclosed operators:
=(3+2) is represented by tInt(3), tInt(2), tAdd, tParen;
=(3%) is represented by tInt(3), tPercent, tParen;
=(SUM(3,2)) is represented by tInt(3), tInt(2), tFuncV(SUM), tParen.
3.10.4 tNlr (18 H ) (BIFF8)
2do
Operand class: reference.
3.10.5 tAttr (19 H )
Special attribute. This token is able to represent a variety of information, described in the following chapters.
Common structure of the tAttr token, BIFF2-BIFF8:
Offset Size Contents
0 1 19 H
1 1 Attribute type flags:
01 H = This is a tAttrVolatile token (volatile function)
02 H = This is a tAttrIf token (IF function control)
04 H = This is a tAttrChoose token (CHOOSE function control)
08 H = This is a tAttrSkip token (skip part of token array)
10 H = This is a tAttrSum token (SUM function with one parameter)
20 H = This is a tAttrAssign token (assignment-style formula in a macro sheet)
40 H = This is a tAttrSpace token (spaces and carriage returns, BIFF3-BIFF8)
41 H = This is a tAttrSpaceVolatile token (BIFF3-BIFF8, see below)
2 var. Additional information dependent on the attribute type
Theoretically, the attribute type flags may be combined to represent several attributes in one tAttr token. In practise, this
is only done with the tAttrVolatile token and a leading tAttrSpace token. This “tAttrSpaceVolatile” token contains the
attribute type 41 H (flags of the tAttrVolatile token and the tAttrSpace token). The data of the token is equivalent to a
regular tAttrSpace token. This is possible, because the tAttrVolatile token does not contain additional valid data.
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