const out={};
try { const f = await eda.pcb_ManufactureData.getDsnFile('AutoRoute_DSN');
  out.type = Object.prototype.toString.call(f);
  if (f && f.size !== undefined) { out.size=f.size; out.name=f.name; out.head=(await f.text()).slice(0,500); }
} catch(e){ out.err=String(e).slice(0,300); }
return out;