The Microsoft Excel File Format - OpenOffice.org

3 Formulas
Other examples for RPN token arrays:
Formula Token array Excel notation Parsing result
2*4+5 2, 4, *, 5, + tInt(2), tInt(4),
tMul, tInt(5), tAdd
First, the integer constants 2 and 4 are pushed onto
the stack. The * operator pops them from the stack
and pushes 8. Then the constant 5 is pushed. The +
operator pops 5 and 8 and pushes 13 (the final
result).
2+4*5 2, 4, 5, *, + tInt(2), tInt(4),
tInt(5), tMul, tAdd
ABS(2*–A1) 2, A1, -, *, ABS tInt(2), tRefV(A1),
tUminus, tMul,
tFunc(ABS)
Example of the complete byte representation of the formula 2*4+5.
• The RPN representation of the formula is: 2, 4, 5, *, +.
• Written in Excel token notation, this is: tInt(2), tInt(4), tInt(5), tMul, tAdd.
Offset Size Contents Token name Description
First, the integer constants 2, 4, and 5 are pushed
onto the stack. The * operator pops 5 and 4 and
pushes 20, the + operator pops 20 and 2 and
pushes 22 (the final result).
First, the integer constant 2 and the value from cell
A1 (for example 3) are pushed onto the stack. The
unary - operator (tUminus) pops the topmost value
3 from stack and pushes the negated value -3. The
* operator pops -3 and 2 and pushes -6. The ABS
function needs 1 parameter. It pops -6 and pushes
6 (the final resut).
0 2 000B H Size of the following formula data (sz)
2 1 1E H tInt
3 2 0002 H
} Integer value token for 2
5 1 1E H tInt
6 2 0004 H
} Integer value token for 4
8 1 05 H tMul Multiplication operator
9 1 1E H tInt
10 2 0005 H
}
Integer value token for 5
12 1 03 H tAdd Addition operator
30