xlport/tests/client/additional/lookup/request.json

{
  "templateId": "lookup/template.xlsx",
  "data": {
    "Data": [
      {
        "LookupId": "B"
      },
      {
        "LookupId": "A"
      }
    ],
    "Lookup": [
      {
        "Id": "A",
        "Value": "X"
      },
      {
        "Id": "B",
        "Value": "Y"
      }
    ]
  }
}