public sealed class LasFile 

{
  var (lasFileCount, zLasFileCount) = lasDataset.GetFileCounts();
  IReadOnlyList<ArcGIS.Core.Data.Analyst3D.LasFile> fileInfo = lasDataset.GetFiles();
  foreach (var file in fileInfo)
  {
    var pathFile = file.FilePath;
    var name = file.FileName;
    var ptCount = file.PointCount;
    var zMin = file.ZMin;
    var zMax = file.ZMax;
  }
}