The Microsoft Excel File Format - OpenOffice.org

4.7 Cell Table and Row Blocks
• Finding Row Blocks in BIFF5-BIFF8
In BIFF5-BIFF8 the INDEX record contains an array with the stream positions of the DBCELL record (➜5.29)
following the cell records in each Row Block. Because the DBCELL record is mandatory, a Row Block cannot be empty
anymore.
Example: A worksheet contains data in the rows 2, 4, 65, and 100. The range of used rows in the INDEX record
is 2…101 (last used row + 1). There are 4 Row Blocks in the sheet: 2…33, 34…65, 66…97, and 98…130. The
third Row Block is empty except its DBCELL record.
0835 H BOF Type = worksheet
0849 H INDEX Row range = 2…101
Offsets = 09A9 H , 09D7 H , 09E1 H , 0A0B H
Sheet records
ROW Row = 2
ROW Row = 4
Cell records for this Row Block
09A9 H
DBCELL
ROW Row = 65
Cell records for this Row Block
09D7 H
09E1 H
DBCELL
DBCELL
ROW Row = 100
Cell records for this Row Block
0A0B H
DBCELL
Sheet records
EOF
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