Loading data into a spreadsheet

{
  "id": "1028",
  "name": "Loading data into a spreadsheet",
  "nodes": [
    {
      "name": "On clicking 'execute'",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        160,
        300
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "name": "Set",
      "type": "n8n-nodes-base.set",
      "position": [
        650,
        300
      ],
      "parameters": {
        "values": {
          "string": [
            {
              "name": "Name",
              "value": "={{$json[\"properties\"][\"firstname\"][\"value\"]}} {{$json[\"properties\"][\"lastname\"][\"value\"]}}"
            },
            {
              "name": "Email",
              "value": "={{$json[\"identity-profiles\"][0][\"identities\"][0][\"value\"]}}"
            }
          ]
        },
        "options": {},
        "keepOnlySet": true
      },
      "typeVersion": 1
    },
    {
      "name": "Mock data (CRM Contacts)",
      "type": "n8n-nodes-base.function",
   ...