How to delete header and footer in a document

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C#3.5

C#5.0

Hi, i want to delete the header and footer in my document, but dont want to edit existing document only read from it in some memorystream and then remove footer and header of the the document?

using (WordprocessingDocument doc = WordprocessingDocument.Open(file, true))


                                        {

                                            var docPart = doc.MainDocumentPart;

                                            // Count the header and footer parts and continue if there
                                            // are any.
                                            if (docPart.HeaderParts.Count() > 0 ||
                                                docPart.FooterParts.Count() > 0)
                                            {
                                                docPart.DeleteParts(docPart.HeaderParts);
                                                docPart.DeleteParts(docPart.FooterParts);
                                                Document document = docPart.Document;

                                                // Remove all references to the headers and footers.

                                                // First, create a list of all descendants of type
                                                // HeaderReference. Then, navigate the list and call
                                                // Remove on each item to delete the reference.
                                                var headers =
                                                  document.Descendants<HeaderReference>().ToList();
                                                foreach (var header in headers)
                                                {
                                                    header.Remove();
                                                }

                                                // First, create a list of all descendants of type
                                                // FooterReference. Then, navigate the list and call
                                                // Remove on each item to delete the reference.
                                                var footers =
                                                  document.Descendants<FooterReference>().ToList();
                                                foreach (var footer in footers)
                                                {
                                                    footer.Remove();
                                                }


                                                // Save the changes.
                                                document.Save();
                                            }

                                        }

Right now my code Removes header and footer of existing file.