Class AttachedFile

public class AttachedFile : Node, IPageChildNode, IOutlineElementChildNode, ITaggable, INode
{
    public string FileName { get; set; }
    private Document ParentDocument { get; set; }
    private NodeAnchor Anchor { get; set; }
    private DocumentPart DocumentPart { get; set; }
    private bool IsInlineWithText { get; set; }
}

string dataDir = RunExamples.GetDataDir_Attachments();
   Document oneFile = new Document(dataDir + "Sample1.one");
   IList<Aspose.Words.AttachedFile> nodes = oneFile.GetChildNodes<Aspose.Words.AttachedFile>();
   foreach (Aspose.Words.AttachedFile file in nodes)
   {
       using (System.IO.MemoryStream outputStream = new System.IO.MemoryStream(file.Bytes))
       {
           using (System.IO.FileStream fileStream = System.IO.File.OpenWrite(String.Format(dataDir + file.FileName)))
           {
               CopyStream(outputStream, fileStream);
           }
       }
   }

string dataDir = RunExamples.GetDataDir_Attachments();
   Document doc = new Document();
   Aspose.Note.Page page = new Aspose.Note.Page(doc);
   Outline outline = new Outline(doc);
   OutlineElement outlineElem = new OutlineElement(doc);
   AttachedFile attachedFile = new AttachedFile(doc, dataDir + "attachment.txt");
   outlineElem.AppendChildLast(attachedFile);
   outline.AppendChildLast(outlineElem);
   page.AppendChildLast(outline);
   doc.AppendChildLast(page);
   dataDir += "AttachFileByPath_out.one";
   doc.Save(dataDir);

string dataDir = RunExamples.GetDataDir_Attachments();
   Document doc = new Document();
   Aspose.Note.Page page = new Aspose.Note.Page(doc);
   Outline outline = new Outline(doc);
   OutlineElement outlineElem = new OutlineElement(doc);
   using (var stream = File.OpenRead(dataDir + "icon.jpg"))
   {
       AttachedFile attachedFile = new AttachedFile(doc, dataDir + "attachment.txt", stream, ImageFormat.Jpeg);
       outlineElem.AppendChildLast(attachedFile);
   }
   outline.AppendChildLast(outlineElem);
   page.AppendChildLast(outline);
   doc.AppendChildLast(page);
   dataDir += "AttachFileAndSetIcon_out.one";
   doc.Save(dataDir);

public AttachedFile(string path)
   {
   }

public AttachedFile(string path, Stream icon, ImageFormat iconFormat)
   {
   }

public AttachedFile(string fileName, Stream attachedFileStream)
   {
   }

public AttachedFile(
        string fileName,
        Stream attachedFileStream,
        Stream icon,
        ImageFormat iconFormat)
    {
    }

public AttachedFile()
   {
   }

public HorizontalAlignment Alignment
    {
        get;
        set;
    }

public string AlternativeTextDescription
    {
        get;
        set;
    }

public string AlternativeTextTitle
{
    get;
    private set;
}

public byte[] Bytes
   {
      get
      {
      }
   }

string dataDir = RunExamples.GetDataDir_Attachments();
   Document oneFile = new Document(dataDir + "Sample1.one");
   IList<Aspose.Words.AttachedFile> nodes = oneFile.GetChildNodes<Aspose.Words.AttachedFile>();
   foreach (Aspose.Words.AttachedFile file in nodes)
   {
      using (Stream outputStream = new MemoryStream(file.Bytes))
      {
         using (System.IO.Stream fileStream = System.IO.File.OpenWrite(String.Format(dataDir + file.FileName)))
         {
            CopyStream(outputStream, fileStream);
         }
      }
   }

public string Extension
   {
      get
      {
         return _extension;
      }
   }
In this case, I've added a curly brace to enclose the body of the property, and adjusted the indentation for better readability.

public string FileName
    {
        get;
        private set;
    }

public string FilePath
   {
      get
      {
      }
   }

public float Height
   {
      get
      {
      }
   }

public float HorizontalOffset
   {
      get;
      private set;
   }

public byte[] Icon
   {
      get
      {
      }
   }

public string IconExtension
    {
        get
        {
            return _iconExtension;
        }
    }

public bool IsPrintout
    {
        get;
        set;
    }

public bool IsSizeSetByUser
    {
        get;
        private set;
    }

public DateTime LastModifiedTime
    {
        get;
        private set;
    }

public float MaxHeight
    {
        get;
        private set;
    }

public float MaxWidth
   {
      get;
      private set;
   }

public ParsingErrorInfo ParsingErrorInfo { get; } // No changes needed for this line. Proper indentation and spacing are already good.

public List<itag> Tags { get; } // Keeping existing line breaks and spacing for readability.

public string Text
    {
        get;
        set;
    }

public float VerticalOffset
    {
        get;
        set;
    }

public float Width
   {
      get;
   }

public override void Accept(DocumentVisitor visitor)
   {
       visitor.Visit(this);
   }
   public override void Accept(DocumentVisitor visitor)
   {
       visitor.Visit(this);
   }
   }