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// For complete examples and data files, please go to https://github.com/groupdocs-watermark/GroupDocs.Watermark-for-.NET
using (CellsDocument doc = Document.Load<CellsDocument>(Utilities.MapSourceFilePath (FilePath)))
{
    foreach (CellsWorksheet worksheet in doc.Worksheets)
    {
        foreach (CellsHeaderFooter headerFooter in worksheet.HeadersFooters)
        {
            Console.WriteLine(headerFooter.HeaderFooterType);
            foreach (CellsHeaderFooterSection section in headerFooter.Sections)
            {
                Console.WriteLine(section.SectionType);
                if (section.Image != null)
                {
                    Console.WriteLine(section.Image.Width);
                    Console.WriteLine(section.Image.Height);
                    Console.WriteLine(section.Image.GetBytes().Length);
                }
                Console.WriteLine(section.Script);
            }
        }
    }
}