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7.3 Common Record Blocks
7.3 Common Record Blocks
7.3.1 CHPICFORMAT Block (BIFF5)
The CHPICFORMAT Block describes a bitmap texture used to fill the area of a chart object.
Structure of the CHPICFORMAT Block, BIFF5:
● CHPICFORMAT
CHBEGIN
7.8
IMDATA
CHEND
7.9
7.3.2 CHESCHERFORMAT Block (BIFF8)
The CHESCHERFORMAT Block describes a complex area format (colour gradients with and without transparence, 
hatches, or bitmap textures).
Structure of the CHESCHERFORMAT Block, BIFF8:
● CHESCHERFORMAT
CHBEGIN
7.8
CHPICFORMAT
CHEND
7.9
7.3.3 CHFRAME Block
The CHFRAME Block describes the border and area formatting of a frame. A frame is a rectangular object in the chart, 
for instance a text object, the legend, or even the chart itself. The CHFRAME Block does not include positioning infor-
mation for the frame.
Structure of the CHFRAME Block:
● CHFRAME
7.10
CHBEGIN
7.8
CHLINEFORMAT
7.11
CHAREAFORMAT
7.6
CHPICFORMAT Block
BIFF5 only, 
7.3.1
CHESCHERFORMAT Block BIFF8 only, 
7.3.2
CHEND
7.9
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7 Charts
7.3.4 CHSOURCELINK Block
The CHSOURCELINK Block contains the link to source data in a sheet. It is used to specify the source data for data 
series (values, category names, series title, bubble sizes), to specify a fixed string for a text box (chart title, axis titles), 
or to link such a text box to a cell in the document.
Linked Cell Range or Cell Range List
Structure of the CHSOURCELINK Block for linked ranges:
CHSOURCELINK
7.12
CHBEGIN
(BIFF3-BIFF4 only) 
7.8
●● CHMULTILINK
(BIFF3-BIFF4 only)
CHEND
(BIFF3-BIFF4 only) 
7.9
Text Box or Series Title
If this block is used for a text box or series title, the CHSTRING record contains the fixed string data, if not linked, or 
the last received string data from the link. The block block does not contain CHBEGIN and CHEND records. If there is 
no text, the CHSTRING record will be omitted.
Structure of the CHSOURCELINK Block for a fixed text or a link to a single text cell:
CHSOURCELINK
7.12
CHSTRING
7.13
7.3.5 CHTEXT Block
The CHTEXT Block describes position, formatting, and contents of a text box in the chart, for instance the chart title, 
axis titles, the legend, or data point labels.
Structure of the CHTEXT Block:
CHTEXT
CHBEGIN
7.8
CHPOS
CHFONT
CHFORMATRUNS
CHSOURCELINK Block
7.3.4
CHFRAME Block
7.3.3
CHOBJECTLINK
CHEND
7.9
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7.3 Common Record Blocks
7.3.6 CHDEFAULTTEXT Block
The CHDEFAULTTEXT Block defines default formatting attributes for specific text boxes in the chart. The formatting 
information from this block is used if no CHTEXT Block exists for a text box. This block contains two header records, 
the CHDEFAULTTEXT record and the CHTEXT record.
Structure of the CHDEFAULTTEXT Block:
● CHDEFAULTTEXT
● CHTEXT Block
7.3.5
7.3.7 CHAXISLINE Block
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7 Charts
7.4 Record Overview, Ordered by Identifier
Record ID
Record name
Occurs in BIFF versions
2
3
4
5
8
1004
H
CHSOURCELINK
1007
H
CHLINEFORMAT
100D
H
CHSTRING
100A
H
CHAREAFORMAT
1021
H
CHAXISLINE
1032
H
CHFRAME
1033
H
CHBEGIN
1034
H
CHEND
103B
H
CHMULTILINK
1051
H
CHSOURCELINK
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7.5 Record Overview, Ordered by Name
7.5 Record Overview, Ordered by Name
Record ID
Record name
Occurs in BIFF versions
2
3
4
5
8
100A
H
CHAREAFORMAT
1021
H
CHAXISLINE
1033
H
CHBEGIN
1034
H
CHEND
1032
H
CHFRAME
1007
H
CHLINEFORMAT
103B
H
CHMULTILINK
1004
1051
H
CHSOURCELINK
100D
H
CHSTRING
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7 Charts
7.6 CHAREAFORMAT
BIFF2
BIFF3
BIFF4
BIFF5
BIFF8
100A
H
100A
H
100A
H
100A
H
100A
H
This record describes the formatting attributes of the area of a chart object.
Record CHAREAFORMAT, BIFF2-BIFF5:
Offset
Size
Contents
0
4
RGB colour of the pattern (
2.5.4)
4
4
RGB colour of the pattern background (
2.5.4)
8
2
Fill pattern (
2.5.12)
10
2
Additional flags:
Bit
Mask
Contents
0
0001
H
1 = Automatic area format, ignore all other fields above
1
0002
H
1 = Exchange pattern colours for negative data points
Record CHAREAFORMAT, BIFF8:
Offset
Size
Contents
0
4
Not used (Excel writes RGB colour of the pattern, but ignores it on import)
4
4
Not used (Excel writes RGB colour of the pattern background, but ignores it on import)
8
2
Fill pattern (
2.5.12)
10
2
Additional flags (see above)
12
2
Colour index (
5.74) for pattern colour
14
2
Colour index (
5.74) for pattern background
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7.7 CHAXISLINE
7.7 CHAXISLINE
BIFF2
BIFF3
BIFF4
BIFF5
BIFF8
1021
H
1021
H
1021
H
1021
H
1021
H
2do
237
7 Charts
7.8 CHBEGIN – Begin of Block
BIFF2
BIFF3
BIFF4
BIFF5
BIFF8
1033
H
1033
H
1033
H
1033
H
1033
H
This record has no content. It indicates the begin of a chart record block (
7.2.2).
238
7.9 CHEND – End of Block
7.9 CHEND – End of Block
BIFF2
BIFF3
BIFF4
BIFF5
BIFF8
1034
H
1034
H
1034
H
1034
H
1034
H
This record has no content. It indicates the end of a chart record block (
7.2.2).
239
7 Charts
7.10 CHFRAME
BIFF2
BIFF3
BIFF4
BIFF5
BIFF8
1032
H
1032
H
1032
H
1032
H
1032
H
This record is the header record of a CHFRAME Block (
7.3.3) that describes the border and area formatting of a chart 
object.
Record CHFRAME, BIFF2-BIFF8:
Offset
Size
Contents
0
2
Frame format: 0 = Standard, 4 = Shadowed
2
2
Option flags:
Bit
Mask
Contents
0
0001
H
1 = Frame size is calculated automatically
1
0002
H
1 = Frame position is calculated automatically
240
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