Summary

The attached .3mf file is a zip archive with this directory structure:

GO-M8010-6-P1 copy
├── 3D
│   └── 3dmodel.model
├── [Content_Types].xml
└── _rels

I'm able to partially inspect this

let archive = Archive(ur: url, accessMode: .read)
print(archive.totalNumberOfEntriesInCentralDirectory)         // prints "3"

But I can’t enumerate those top level items:

for entry in archive {
    print("Entry: \(entry)")
}

Prints nothing. Attempting to get archive["3D"] returns nil.

Version
0.9.19

I had to zip the file to get Github to accept it. Unzip it, then try to load the resulting file using Arhive().

GO-M8010-6-P1.3mf.zip