Record Types

Some general characteristics of BIFF records:

• Every BIFF record begins with a single byte that identifies the record. The hexadecimal value of the record number is included in parentheses in the heading of the record description. Following the record byte is the record data that describes the formula, window, etc.
• Strings in Pocket Excel 1.0 files are always stored in ASCII format, so character counts are equivalent to byte counts. Pocket Excel 2.0, on the other hand, stores all strings in Unicode (two bytes/character), so all character counts are WORD counts.

The following sections detail the different types of records. Those marked with PXL 2.0 or PXL 1.0 only apply to their respective versions.