The Microsoft Excel File Format - OpenOffice.org

2.5 Common Record Substructures
2.5.6 Error Codes
If the calculation of a formula results in an error or any other action fails, Excel sets a specific error code. These error
codes are used for instance in cell records and formulas.
Error code Error value Description
00 H #NULL! Intersection of two cell ranges is empty
07 H #DIV/0! Division by zero
0F H #VALUE! Wrong type of operand
17 H #REF! Illegal or deleted cell reference
1D H #NAME? Wrong function or range name
24 H #NUM! Value range overflow
2A H #N/A Argument or function not available
2.5.7 Constant Values
Sometimes it is needed to store constant values of different data types. These values are used to create linear lists (for
instance in the CRN record, ➜5.23), or two-dimensional arrays (➜2.5.8). This chapter describes the format of the
individual constant values.
• Empty Value
Offset Size Contents
0 1 00 H (Identifier for an empty constant)
1 8 Not used
• Number
Offset Size Contents
0 1 01 H (Identifier for a numerical constant)
1 8 IEEE 754 floating-point value (64-bit double precision)
• String Value
Offset Size Contents
0 1 02 H (Identifier for a string constant)
1 var. BIFF2-BIFF5: Byte string, 8-bit string length (➜2.5.2)
BIFF8: Unicode string, 16-bit string length, option flags occur always (➜2.5.3)
• Boolean Value
Offset Size Contents
0 1 04 H (Identifier for a Boolean constant)
1 1 0 = FALSE, 1 = TRUE
2 7 Not used
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