PM> Install-Package Spire.PDF

using Spire.Pdf;
using Spire.Pdf.Texts;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Text;

namespace GetTextFont
{
    class Program
    {
        static void Main(string[] args)
        {
            // Create a PdfDocument instance
            PdfDocument pdf = new PdfDocument();

            // Load a PDF file
            pdf.LoadFromFile("NET Framework.pdf");

            // Get the first page
            PdfPageBase page = pdf.Pages[0];

            // Create a PdfTextFinder instance
            PdfTextFinder finds = new PdfTextFinder(page);

            // Find specified text on the page
            finds.Options.Parameter = TextFindParameter.None;
            List<PdfTextFragment> result = finds.Find(".NET Framework");

            // Create a StringBuilder instance
            StringBuilder str = new StringBuilder();

            // Iterate through all found text
            foreach (PdfTextFragment find in result)
            {
                // Get the found text
                string text = find.Text;
                // Get the font name
                string FontName = find.TextStates[0].FontName;
                // Get the font size
                float FontSize = find.TextStates[0].FontSize;
                // Get the font family
                string FontFamily = find.TextStates[0].FontFamily;
                // Indicate whether the font is bold or italic
                bool IsBold = find.TextStates[0].IsBold;
                bool IsSimulateBold = find.TextStates[0].IsSimulateBold;
                bool IsItalic = find.TextStates[0].IsItalic;
                // Get the font color
                Color color = find.TextStates[0].ForegroundColor;

                // Append the font information to the StringBuilder instance
                str.AppendLine(text);
                str.AppendLine("FontName: " + FontName);
                str.AppendLine("FontSize: " + FontSize);
                str.AppendLine("FontFamily: " + FontFamily);
                str.AppendLine("IsBold: " + IsBold);
                str.AppendLine("IsSimulateBold: " + IsSimulateBold);
                str.AppendLine("IsItalic: " + IsItalic);
                str.AppendLine("color: " + color);
                str.AppendLine(" ");
            }
            // Write to a txt file
            File.WriteAllText("PdfFont.txt", str.ToString());
        }
    }
}

using Spire.Pdf;
using Spire.Pdf.Graphics;
using Spire.Pdf.Graphics.Fonts;
using System.IO;
using System.Text;

namespace GetPdfFont
{
    class Program
    {
        static void Main(string[] args)
        {
            // Create a PdfDocument instance
            PdfDocument pdf = new PdfDocument();

            // Load a PDF file
            pdf.LoadFromFile("NET Framework.pdf");

            // Get the used fonts in the PDF file
            PdfUsedFont[] fonts = pdf.UsedFonts;

            // Create a StringBuilder instance
            StringBuilder str = new StringBuilder();

            // Iterate through the used fonts
            foreach (PdfUsedFont font in fonts)
            {
                // Get the font name
                string name = font.Name;

                // Get the font size
                float size = font.Size;

                // Get the font type
                PdfFontType type = font.Type;

                // Get the font style
                PdfFontStyle style = font.Style;

                // Append the font information to the StringBuilder instance
                str.AppendLine("FontName: " + name + " FontSize: " + size + " FontType: " + type + " FontStyle: " + style);

            }

            // Write to a txt file
            File.WriteAllText("PdfFontInfo.txt", str.ToString());
        }
    }
}

PM> Install-Package Spire.XLS

using Spire.Xls;
using System.IO;

namespace ConvertWorksheetToSVG
{
    class Program
    {
        static void Main(string[] args)
        {
            //Create an instance of Workbook class
            Workbook workbook = new Workbook();
            //Load an Excel file
            workbook.LoadFromFile("Sample1.xlsx");

            //Get the first worksheet
            Worksheet sheet = workbook.Worksheets[0];

            //Create an instance of FileStream class
            FileStream fs = new FileStream("E:\\Program Files\\WorksheetToSVG.svg", FileMode.Create);
            //Save the worksheet to SVG
            sheet.ToSVGStream(fs, 0, 0, 0, 0);
            fs.Flush();
            fs.Close();            
        }
    }
}

Imports Spire.Xls
Imports System.IO

Namespace ConvertWorksheetToSVG
    Friend Class Program
        Private Shared Sub Main(ByVal args As String())
            'Create an instance of Workbook class
            Dim workbook As Workbook = New Workbook()
            'Load an Excel file
            workbook.LoadFromFile("Sample1.xlsx")

            'Get the first worksheet
            Dim sheet As Worksheet = workbook.Worksheets(0)

            'Create an instance of FileStream class
            Dim fs As FileStream = New FileStream("E:\Program Files\WorksheetToSVG.svg", FileMode.Create)
            'Save the worksheet to SVG
            sheet.ToSVGStream(fs, 0, 0, 0, 0)
            fs.Flush()
            fs.Close()
        End Sub
    End Class
End Namespace

using Spire.Xls;
using System.IO;

namespace ConvertChartSheetToSVG
{
    class Program
    {
        static void Main(string[] args)
        {
            //Create an instance of Workbook class
            Workbook workbook = new Workbook();
            //Load an Excel file
            workbook.LoadFromFile("Sample2.xlsx");

            //Get the first chart sheet
            ChartSheet chartSheet = workbook.Chartsheets[0];

            //Create an instance of FileStream class
            FileStream fs = new FileStream("E:\\ProgramFiles\\ChartSheetToSVG.svg", FileMode.Create);
            //Save the chart sheet to SVG
            chartSheet.ToSVGStream(fs);
            fs.Flush();
            fs.Close();
        }
    }
}

Imports Spire.Xls
Imports System.IO

Namespace ConvertChartSheetToSVG
    Friend Class Program
        Private Shared Sub Main(ByVal args As String())
            'Create an instance of Workbook class
            Dim workbook As Workbook = New Workbook()
            'Load an Excel file
            workbook.LoadFromFile("Sample2.xlsx")

            'Get the first chart sheet
            Dim chartSheet As ChartSheet = workbook.Chartsheets(0)

            'Create an instance of FileStream class
            Dim fs As FileStream = New FileStream("E:\ProgramFiles\ChartSheetToSVG.svg", FileMode.Create)
            'Save the chart sheet to SVG
            chartSheet.ToSVGStream(fs)
            fs.Flush()
            fs.Close()
        End Sub
    End Class
End Namespace