BOF: Magic bytes ‘MGC’, ‘RRG’ or 'DKO' at beginning of file. The initial versions of Cardfile have the magic bytes 'MCG'. When Cardfile updated to add OLE support the file signature changed to 'RRG'. Finally the file signature changed to 'DKO' when released as a 32-bit accessory and the character width changed in order to support unicode.
Byte sequences
Position type
Absolute from BOF
Offset
0
Maximum Offset
2
Byte order
Value
4D4743
Name
Cardfile (RRG)
Description
Cardfile updated to add OLE support and the magic bytes changed to 'RRG' at the beginning of the file.
Byte sequences
Position type
Absolute from BOF
Offset
0
Maximum Offset
2
Byte order
Value
525247
Name
Cardfile (DKO)
Description
The magic bytes changed to 'DKO' at the beginning of the file when released as a 32-bit accessory.