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

namespace InsertOLE_Doc
{
    class Program
    {
        static void Main(string[] args)
        {
            //实例化一个Document类对象
            Document doc = new Document();
            //向文档中添加一个Section对象,并添加段落
            Section sec = doc.AddSection();
            Paragraph p = sec.AddParagraph();

            //实例化一个DocPicture类对象,加载图片
            DocPicture picture = new DocPicture(doc);
            Image image = Image.FromFile(@"chart1.png");
            picture.LoadImage(image);

            //在文档中插入一个工作表, OleLinkType 枚举值控制该OLE是链接还是嵌入         
            DocOleObject obj = p.AppendOleObject(@"testfile.xlsx", picture, OleLinkType.Link);
            //DocOleObject obj = p.AppendOleObject(@"testfile.xlsx", picture, OleLinkType.Embed);

            //保存并打开文档
            doc.SaveToFile("添加OLE.docx");
            System.Diagnostics.Process.Start("添加OLE.docx");
        }
    }
}

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

namespace EditOLE_Doc
{
    class Program
    {
        static void Main(string[] args)
        {
            //实例化一个Document对象,加载含有OLE的Word文档
            Document doc = new Document();
            doc.LoadFromFile("test.docx");

            //获取第一个Section
            Section sec = doc.Sections[0];

            //遍历这个Section中的所有子元素，找到段落下的OLE对象
            foreach (DocumentObject obj in sec.Body.ChildObjects)
            {
                if (obj is Paragraph)
                {
                    Paragraph par = obj as Paragraph;
                    foreach (DocumentObject paraObj in par.ChildObjects)
                    {
                        //找到OLE对象，根据类型来进行更改操作
                        if (paraObj.DocumentObjectType == DocumentObjectType.OleObject)
                        {
                            DocOleObject Ole = paraObj as DocOleObject;
                            //如果是链接， 修改对象的链接路径
                            if (Ole.LinkType == OleLinkType.Link)
                            {
                                //同时还要手动去更改OLE的图片
                                DocPicture pic = Ole.OlePicture;
                                pic.LoadImage(Image.FromFile("Img.png"));
                                Ole.LinkPath = @"sample.docx";
                            }
                            //如果是嵌入，更改数据即可
                            byte[] bys = File.ReadAllBytes(@"sample.docx");
                            if (Ole.LinkType == OleLinkType.Embed)
                            {
                                DocPicture pic = new DocPicture(doc);
                                pic.LoadImage(Image.FromFile(@"Img.png"));
                                Ole.ObjectType = "Word.Document.12";
                                Ole.SetOlePicture(pic);
                                Ole.SetNativeData(bys);
                            }
                        }
                    }
                }
            }
            //保存修改后的文档，并打开
            doc.SaveToFile("修改OLE.docx", Spire.Doc.FileFormat.Docx2010);
            System.Diagnostics.Process.Start("修改OLE.docx");
        }
    }
}

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

namespace ReadOLE_Doc
{
    class Program
    {
        static void Main(string[] args)
        {
            //实例化一个Document对象，加载一个有OLE对象的文档
            Document doc = new Document();          
            doc.LoadFromFile(@"test.docx");

            //遍历文档所有Section          
            foreach (Section sec in doc.Sections)
            {
                //遍历Section下面所有的子元素
                foreach (DocumentObject obj in sec.Body.ChildObjects)
                {
                    if (obj is Paragraph)
                    {
                        Paragraph par = obj as Paragraph;
                        //遍历这个section下面的段落
                        foreach (DocumentObject o in par.ChildObjects)
                        {
                            //找到OLE对象，并根据类型提取
                            if (o.DocumentObjectType == DocumentObjectType.OleObject)
                            {
                                DocOleObject Ole = o as DocOleObject;
                                /*ObjectType属性可以获取ole对象的具体类型。
                                注意，如果是用Spire.Doc添加的ole对象的话，需要在AppendOleObject
                                的时候先声明OleObjectType，不然这里得不到具体的类型，只会得到Package*/
                                string s = Ole.ObjectType;
                                //"AcroExch.Document.11"是指PDF对象对应的ProgID
                                if (s == "AcroExch.Document.11")
                                {
                                    File.WriteAllBytes("Result.pdf", Ole.NativeData);
                                }
                                //"Excel.Sheet.12"是指 Excel03之后的工作表对应的ProgID
                                else if (s == "Excel.Sheet.12")
                                {
                                    File.WriteAllBytes("Result.xlsx", Ole.NativeData);
                                }
                                //"Word.Document.12"是指03之后的Word对应的ProgID
                                else if (s == "Word.Document.12")
                                {
                                    File.WriteAllBytes("Result.docx", Ole.NativeData);
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}