appsettings.json

{
  "EPPlus": {
    "ExcelPackage": {
      "Compatibility": {
        "IsWorksheets1Based": false     //Default and recommended value is false, use true only if you have projects that have used older versions of EPPlus where the Worksheet collection was 1-based.
      },
      "LicenseContext": "NonCommercial" //The license context used
    }
  }
}