A quick routine to open your Windows Cab files from Excel.
Typical Cab File layout:
(1) CAB_HEADER structure
(2) Reserved area, if CAB_HEADER.flags & CAB_FLAG_RESERVE
(3) Previous cabinet name, if CAB_HEADER.flags & CAB_FLAG_HASPREV
(4) Previous disk name, if CAB_HEADER.flags & CAB_FLAG_HASPREV
(5) Next cabinet name, if CAB_HEADER.flags & CAB_FLAG_HASNEXT
(6) Next disk name, if CAB_HEADER.flags & CAB_FLAG_HASNEXT
(7) CAB_FOLDER structures (n = CAB_HEADER.cFolders)
(8) CAB_ENTRY structures / file names (n = CAB_HEADER.cFiles)
(9) File data (offset = CAB_FOLDER.coffCabStart)