Supported formats

The current New Project → Import Project flow accepts KiCad and Altium project folders. It does not expose standalone netlist, image, PDF, or loose-file imports.

KiCad project folders

Select a folder containing at least one .kicad_pro or .kicad_sch marker. Second Silicon retains the KiCad project, schematic, board, symbol, footprint, library-table, and relevant BOM files needed by the import pipeline.

A folder containing several nested .kicad_pro roots is partitioned into separate boards. Select the narrowest project folder when you want only one board.

The resulting board can include a rendered schematic, native semantic scene, component/net explorer data, and source editing. Exact capabilities are stored per board and depend on the parser result.

Altium project folders

Select a folder containing one .PrjPcb root and its related .SchDoc, .PcbDoc, library, and generated metadata files. Second Silicon retains relevant project sources and selected schematic/PCB image evidence while excluding unrelated generated outputs.

The schematic surface comes from the external Altium parser. Semantic components, nets, and native scene data are available only when that parser returns usable records. Altium source editing is not supported.

Other files

Standalone netlists, schematic images, and PDFs are not accepted by the current project-import dialog. Firmware source and chat images are attached through their own board or thread workflows; they do not create a project by themselves.