A .projectarchive is neither PLCopen XML nor Structured Text, but the wizard's
format dropdown only offered those two — confusing when uploading a CODESYS
archive (found live during the demo).
- add PlcFormat::ProjectArchive (metadata only; processing is content-driven).
- wizard: add the "Project archive (.projectarchive)" option, and auto-select the
format from the chosen file's extension (.projectarchive/.project → archive,
.xml → PLCopen XML, .st/.exp/.scl → Structured Text).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>