Document doc = new Document();
doc.LoadFromFile("Bookmark.docx");

BookmarksNavigator navigator = new BookmarksNavigator(doc);

navigator.MoveToBookmark("bookmark_1");
TextBodyPart textBodyPart = navigator.GetBookmarkContent();

string text = null;
foreach (var item in textBodyPart.BodyItems)
{
    if (item is Paragraph)
    {
        foreach (var childObject in (item as Paragraph).ChildObjects)
        {
            if (childObject is TextRange)
            {
                text += (childObject as TextRange).Text;
            }
        }
    }
}

using Spire.Doc;
using Spire.Doc.Documents;
using Spire.Doc.Fields;
using System;
namespace GetText
{
    class Program
    {

        static void Main(string[] args)
        {

            Document doc = new Document();
            doc.LoadFromFile("Bookmark.docx");

            BookmarksNavigator navigator = new BookmarksNavigator(doc);
            navigator.MoveToBookmark("bookmark_1");
            TextBodyPart textBodyPart = navigator.GetBookmarkContent();

            string text = null;
            foreach (var item in textBodyPart.BodyItems)
            {
                if (item is Paragraph)
                {
                    foreach (var childObject in (item as Paragraph).ChildObjects)
                    {
                        if (childObject is TextRange)
                        {
                            text += (childObject as TextRange).Text;
                        }
                    }
                }
            }
            Console.WriteLine(text);
        }
    }
}

Imports Spire.Doc
Imports Spire.Doc.Documents
Imports Spire.Doc.Fields
Namespace GetText
	Class Program

		Private Shared Sub Main(args As String())

			Dim doc As New Document()
			doc.LoadFromFile("Bookmark.docx")

			Dim navigator As New BookmarksNavigator(doc)
			navigator.MoveToBookmark("bookmark_1")
			Dim textBodyPart As TextBodyPart = navigator.GetBookmarkContent()

			Dim text As String = Nothing
			For Each item As var In textBodyPart.BodyItems
				If TypeOf item Is Paragraph Then
					For Each childObject As var In TryCast(item, Paragraph).ChildObjects
						If TypeOf childObject Is TextRange Then
							text += TryCast(childObject, TextRange).Text
						End If
					Next
				End If
			Next
			Console.WriteLine(text)
		End Sub
	End Class
End Namespace

//create a presentation document and load the file from disk
Presentation presentation = new Presentation();
presentation.LoadFromFile("Sample.pptx");

//get the table from the first slide of the sample document
ISlide slide = presentation.Slides[0];
ITable table = slide.Shapes[1] as ITable;
     
//set the border type as Inside and the border color as blue
table.SetTableBorder(TableBorderType.Inside, 1, Color.Blue);

//save the document to file
presentation.SaveToFile("Insideborder.pptx", FileFormat.Pptx2010);

using Spire.Presentation;
using System;

namespace Set_border_type_and_color
{

    class Program
    {
        static void Main(string[] args)
        {

            //create a presentation document 
            Presentation presentation = new Presentation();

            //set the table width and height for each table cell
            double[] tableWidth = new double[] { 100, 100, 100, 100, 100 };
            double[] tableHeight = new double[] { 20, 20 };

            //traverse all the border type of the table
            foreach (TableBorderType item in Enum.GetValues(typeof(TableBorderType)))

            //add a table to the presentation slide with the setting width and height
            {
                ITable itable = presentation.Slides.Append().Shapes.AppendTable(100, 100, tableWidth, tableHeight);

                //add some text to the table cell
                itable.TableRows[0][0].TextFrame.Text = "Row";
                itable.TableRows[1][0].TextFrame.Text = "Column";

                //set the border type, border width and the border color for the table
                itable.SetTableBorder(item, 1.5, Color.Red);

            }

            //save the document to file
            presentation.SaveToFile("Addtablewithborder.pptx", FileFormat.Pptx2010);

        }
    }
}

Document doc = new Document();

doc.LoadFromFile("Sample.docx");

foreach (Section section in doc.Sections)
{
    foreach (Paragraph paragraph in section.Paragraphs)
    {
        foreach (DocumentObject docObject in paragraph.ChildObjects)
        {
            if (docObject.DocumentObjectType == DocumentObjectType.TextRange)
            {
                TextRange text = docObject as TextRange;
                Console.WriteLine(text.StyleName);
            }                   
        }
    }                
}

using Spire.Doc;
using Spire.Doc.Documents;
using Spire.Doc.Fields;
using System;
using System.Text.RegularExpressions;
namespace RetrieveStyleNames
{
    class Program
    {
        static void Main(string[] args)
        {
            Document doc = new Document();
            doc.LoadFromFile("Sample.docx");

            foreach (Section section in doc.Sections)
            {
                foreach (Paragraph paragraph in section.Paragraphs)
                {
                    foreach (DocumentObject docObject in paragraph.ChildObjects)
                    {
                        if (docObject.DocumentObjectType == DocumentObjectType.TextRange)
                        {
                            TextRange text = docObject as TextRange;
                            Console.WriteLine(text.StyleName);
                        }
                    }
                    Console.WriteLine();
                }
            }
        }
    }
}

Imports Spire.Doc
Imports Spire.Doc.Documents
Imports Spire.Doc.Fields
Imports System.Text.RegularExpressions
Namespace RetrieveStyleNames
	Class Program
		Private Shared Sub Main(args As String())
			Dim doc As New Document()
			doc.LoadFromFile("Sample.docx")

			For Each section As Section In doc.Sections
				For Each paragraph As Paragraph In section.Paragraphs
					For Each docObject As DocumentObject In paragraph.ChildObjects
						If docObject.DocumentObjectType = DocumentObjectType.TextRange Then
							Dim text As TextRange = TryCast(docObject, TextRange)
							Console.WriteLine(text.StyleName)
						End If
					Next
					Console.WriteLine()
				Next
			Next
		End Sub
	End Class
End Namespace

Presentation presentation = new Presentation();
presentation.LoadFromFile("Sample.pptx", FileFormat.Pptx2013);

ISlide slide = presentation.Slides[0];

foreach (IShape shapeToMove in slide.Shapes)
{
    if (shapeToMove.Name.Contains("Slide Number Placeholder"))
    {
        shapeToMove.Left =0;                                                  
     }

    else if (shapeToMove.Name.Contains("Date Placeholder"))
    {
        shapeToMove.Left = presentation.SlideSize.Size.Width / 2;
       
        (shapeToMove as IAutoShape).TextFrame.TextRange.Paragraph.Text = DateTime.Now.ToString("dd.MM.yyyy");
        (shapeToMove as IAutoShape).TextFrame.IsCentered = true;
    }
}

presentation.SaveToFile("Result.pptx", FileFormat.Pptx2013);

using Spire.Presentation;
using System;
namespace ResetPosition
{

    class Program
    {

        static void Main(string[] args)
        {
            Presentation presentation = new Presentation();

            presentation.LoadFromFile("Sample.pptx", Spire.Presentation.FileFormat.Pptx2013);

            ISlide slide = presentation.Slides[0];

            foreach (IShape shapeToMove in slide.Shapes)
            {
                if (shapeToMove.Name.Contains("Slide Number Placeholder"))
                {
                    shapeToMove.Left = 0;

                }

                else if (shapeToMove.Name.Contains("Date Placeholder"))
                {
                    shapeToMove.Left = presentation.SlideSize.Size.Width / 2;

                    (shapeToMove as IAutoShape).TextFrame.TextRange.Paragraph.Text = DateTime.Now.ToString("dd.MM.yyyy");
                    (shapeToMove as IAutoShape).TextFrame.IsCentered = true;
                }

            }
            presentation.SaveToFile("Result.pptx", Spire.Presentation.FileFormat.Pptx2013);

        }
    }
}