The Microsoft Excel File Format - OpenOffice.org

4 Worksheet/Workbook Stream
• External and 3D References
The EXTERNALBOOK for the own document has a special format: It contains only the number of all sheets and the
byte sequence 01 H 04 H instead of the sheet names. The sheet range indexes in the EXTERNSHEET record refer to the
position of the sheets (zero-based). If a referenced sheet does not exist anymore, the sheet index –1 will occur (deleted
3D reference).
Example: A document with 7 sheets (named from “Sheet1” to “Sheet7”) contains the formulas
=Sheet2!A1,
=SUM(Sheet4:Sheet6!A1:B3),
=SUM([example.xls]ExtSheet1!A1:B2) (contents: A1=1.11, B1=2.22, A2=3.33, B2=4.44),
=[example.xls]ExtSheet3!A1 (contents: “ABCD”), and
=Sheet8!A1.
EXTERNALBOOK 0 Number of sheets: 7
01 H 04 H (own workbook)
EXTERNALBOOK 1 Number of sheets: 3
Document = “example.xls”
Sheet 0 = “ExtSheet1”
Sheet 1 = “ExtSheet2”
Sheet 2 = “ExtSheet3”
XCT
Number of CRN = 2, sheet = 0 (ExtSheet1)
CRN 0 Cell range = A1:B1, contents = 1.11, 2.22
CRN 1 Cell range = A2:B2, contents = 3.33, 4.44
XCT
CRN 0
EXTERNSHEET
Number of CRN = 1, sheet = 2 (ExtSheet3)
Cell range = A1, contents = “ABCD”
REF 0 = {EXTERNALBOOK = 0, sheet range = 1…1}
REF 1 = {EXTERNALBOOK = 0, sheet range = 3…5}
REF 2 = {EXTERNALBOOK = 1, sheet range = 0…0}
REF 3 = {EXTERNALBOOK = 1, sheet range = 1…1}
REF 4 = {EXTERNALBOOK = 0, sheet range = –1…–1}
Inside of the first formula the cell reference is represented by the token tRef3d (➜3.9.15). The second formula
contains the token tArea3d (➜3.9.16).
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