Xitzal.z04 — Lacey

So putting it together, "Lacey Xitzal.z04" could be the fourth part of a ZIP archive split into multiple parts, with the person's name being the main identifier. That makes sense. So the features would relate to how ZIP split archives work in general. Features would include splitting large files into manageable parts, requiring all parts to extract the whole, specific software needed to open them, and the file structure (each part must be in the same directory as the first .z01 file).