The Microsoft Excel File Format - OpenOffice.org

5 Worksheet/Workbook Records
• Font Formatting Block
Offset Size Contents
0 64 Font name (Unicode string, 8-bit string length, ➜2.5.3). The empty string (length 0)
preserves the font name of the current cell. The remaining bytes of this fixed-size block
(always 64 bytes) are not used.
64 4 Font height (in twips = 1 / 20 of a point); or –1 to preserve the cell font height
68 4 Font options:
Bit Mask Contents
1 00000002 H Posture: 0 = Normal; 1 = Italic (only if font-style = 0)
3 00000008 H Outline: 0 = Off; 1 = On (only if font-outline = 0)
4 00000010 H Shadow: 0 = Off; 1 = On (only if font-shadow = 0)
5 00000020 H Condense: 0 = Off; 1 = On (only if font-cond = 0)
7 00000080 H Cancellation: 0 = Off; 1 = On (only if font-canc = 0)
72 2 Font weight (100-1000, only if font-style = 0).
Standard values are 0190 H (400) for normal text and 02BC H (700) for bold text.
74 2 Escapement type (only if font-esc = 0):
0 = None
1 = Superscript
2 = Subscript
76 1 Underline type (only if font-underl = 0):
00 H = None
01 H = Single 21 H = Single accounting
02 H = Double 22 H = Double accounting
77 3 Not used
80 4 Font colour index (➜5.74); or –1 to preserve the cell font colour
84 4 Not used
88 4 Option flags for modified font attributes:
Bit Mask Name Contents
1 00000002 H font-style 0 = Font style (posture/boldness) modified
3 00000008 H font-outline 0 = Font outline modified
4 00000010 H font-shadow 0 = Font shadow modified
5 00000020 H font-cond 0 = Font condense modified
7 00000080 H font-canc 0 = Font cancellation modified
92 4 0 = Escapement type modified, 1 = preserved (font-esc)
96 4 0 = Underline type modified, 1 = preserved (font-underl)
100 4 Always 00000001 H
104 4 Always 00000001 H
108 8 Not used
116 2 Always 0001 H
142