using Spire.Doc;
using Spire.Doc.Documents;
using Spire.Doc.Fields;
using System.IO;

namespace ExtractMediaFile
{
    class Program
    {
        static void Main(string[] args)
        {
            //加載Word文檔
            Document doc = new Document();
            doc.LoadFromFile(@"OLE.docx");

            //遍歷所有子對象
            foreach (Section section in doc.Sections)
            {
                foreach (DocumentObject obj in section.Body.ChildObjects)
                {
                    if (obj is Paragraph)
                    {
                        Paragraph paragraph = obj as Paragraph;
                        foreach (DocumentObject obj2 in paragraph.ChildObjects)
                        {
                            if (obj2.DocumentObjectType == DocumentObjectType.OleObject)
                            {
                                DocOleObject ole = obj2 as DocOleObject;

                                //提取文件
                                File.WriteAllBytes(ole.PackageFileName, ole.NativeData);
                            }
                        }
                    }
                }
            }

        }
    }
}

Imports Spire.Doc
Imports Spire.Doc.Documents
Imports Spire.Doc.Fields
Imports System.IO

Namespace ExtractMediaFile
    Class Program
        Private Shared Sub Main(args As String())
            '加載Word文檔
            Dim doc As New Document()
            doc.LoadFromFile("test.docx")

            '遍歷所有子對象
            For Each section As Section In doc.Sections
                For Each obj As DocumentObject In section.Body.ChildObjects
                    If TypeOf obj Is Paragraph Then
                        Dim paragraph As Paragraph = TryCast(obj, Paragraph)
                        For Each obj2 As DocumentObject In paragraph.ChildObjects
                            If obj2.DocumentObjectType = DocumentObjectType.OleObject Then
                                Dim ole As DocOleObject = TryCast(obj2, DocOleObject)

                                '提取文件
                                File.WriteAllBytes(ole.PackageFileName, ole.NativeData)
                            End If
                        Next
                    End If
                Next
            Next

        End Sub
    End Class
End Namespace