Offset | Name | Size | Contents |
4 | lcsec | 4 | Count of all section records that have ever been created in this document, plus 1 (includes published embedded charts) |
8 | crtpub | 2 | Count of all PUB records in the file (includes published embedded charts) |
10 | (Reserved) | 2 | Reserved; must be 0 (zero) |