The Microsoft Excel File Format - OpenOffice.org

4.10 Internal and External References
• DDE Links, OLE Links
DDE links and OLE links expect the name of the server application (DDE) or the class name (OLE) and the name of a
source document. These items are encoded in an EXTERNSHEET record. It is followed by EXTERNALNAME records
with additional data of the links. An EXTERNALNAME record contains the item (data source range) or the identifier of
the OLE object data storage. Inside a formula, a DDE link or OLE data link is represented by the token tNameXV
(➜3.9.14). An OLE object link contains a tNameX token in its OBJ record.
Example: A document contains a DDE link and an OLE data link to the range A1:B2 of Sheet1 in the Excel
document “D:\example.xls” and a linked OLE object to the bitmap file “D:\example.bmp”.
EXTERNALBOOK 0
EXTERNALNAME 1
EXTERNALNAME 2
EXTERNALBOOK 1
EXTERNALNAME 1
EXTERNALBOOK 2
EXTERNALNAME 1
EXTERNSHEET
Server application = “excel”
Topic = “D:\[example.xls]Sheet1”
Type = DDE link, representing the “StdDocumentName”
identifier
Item = “StdDocumentName”
Type = DDE link
Item = “A1:B2”
Class name = “Excel.Sheet.8”
Document = “D:\example.xls”
Type = OLE link
Item = “!Sheet1!A1:B2”
Class name = “Package”
Document = “D:\example.bmp”
Type = OLE link
Storage = 00012345 H (storage name = “LNK00012345”)
REF 0 = {EXTERNALBOOK = 0, sheet range = –2…–2}
REF 1 = {EXTERNALBOOK = 1, sheet range = –2…–2}
REF 2 = {EXTERNALBOOK = 2, sheet range = –2…–2}
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