Creating PowerPoint Document

[Stanlow]

I am busy recreating a powerpoint with xml. i have added all the neccessary files but when i open the document in powerpoint, it says there is a problem with the content. is there any where where i can see more examples of working like this etc? here is a sample of how i am working with it:\[code\] private static void SlideMaster1Xml() { FileStream slideMaster1stream = new FileStream(slideMaster1FilePath, FileMode.Create, FileAccess.Write); XmlWriter slideMaster1Writer = null; try { XmlWriterSettings contentTypesSettings = new XmlWriterSettings(); contentTypesSettings.Indent = true; slideMaster1Writer = XmlWriter.Create(slideMaster1stream, contentTypesSettings); slideMaster1Writer.WriteStartDocument(true); slideMaster1Writer.WriteStartElement("p", "sldMaster", "http://schemas.openxmlformats.org/presentationml/2006/main"); slideMaster1Writer.WriteAttributeString("xmlns","r",null ,"http://schemas.openxmlformats.org/officeDocument/2006/relationships"); slideMaster1Writer.WriteAttributeString("xmlns", "a",null, "http://schemas.openxmlformats.org/drawingml/2006/main"); slideMaster1Writer.WriteStartElement("p", "cSld", null); slideMaster1Writer.WriteStartElement("p", "bg", null); slideMaster1Writer.WriteStartElement("p", "bgRef", null); slideMaster1Writer.WriteAttributeString("Idx", "1001"); slideMaster1Writer.WriteStartElement("a", "schemeClr", null); slideMaster1Writer.WriteAttributeString("val", "bg1"); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteStartElement("p", "spTree", null); slideMaster1Writer.WriteStartElement("p", "nvGrpSpPr", null); slideMaster1Writer.WriteStartElement("p", "cnvPr", null); slideMaster1Writer.WriteAttributeString( "name", "" ); slideMaster1Writer.WriteAttributeString("Id", "1"); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteStartElement("p", "cNvGrpSpPr", null); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteStartElement("p", "nvPr", null); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteStartElement("p", "grpSpPr", null); slideMaster1Writer.WriteStartElement("a", "xfrm", null); slideMaster1Writer.WriteStartElement("a", "off", null); slideMaster1Writer.WriteAttributeString( "y", "0" ); slideMaster1Writer.WriteAttributeString("x", "0"); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteStartElement("a", "ext", null); slideMaster1Writer.WriteAttributeString("cy", "0"); slideMaster1Writer.WriteAttributeString("cx", "0"); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteStartElement("a", "chOff",null); slideMaster1Writer.WriteAttributeString( "y", "0" ); slideMaster1Writer.WriteAttributeString("x", "0"); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteStartElement("a", "chExt",null); slideMaster1Writer.WriteAttributeString("cy", "0"); slideMaster1Writer.WriteAttributeString("cx", "0"); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteStartElement("p", "sp",null); slideMaster1Writer.WriteStartElement("p", "nvSpPr",null); slideMaster1Writer.WriteStartElement("p", "cNvPr",null); slideMaster1Writer.WriteAttributeString( "name", "Title Placeholder 1" ); slideMaster1Writer.WriteAttributeString("id", "2"); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteStartElement("p", "cNvSpPr",null); slideMaster1Writer.WriteStartElement("a", "spLocks",null); slideMaster1Writer.WriteAttributeString("noGrp", "1"); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteStartElement("p", "nvPr",null); slideMaster1Writer.WriteStartElement("p", "ph",null); slideMaster1Writer.WriteAttributeString("type", "title"); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteStartElement("p", "spPr",null); slideMaster1Writer.WriteStartElement("a", "xfrm",null); slideMaster1Writer.WriteStartElement("a", "off",null); slideMaster1Writer.WriteAttributeString( "y", "274638" ); slideMaster1Writer.WriteAttributeString("x", "457200"); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteStartElement("a", "ext",null); slideMaster1Writer.WriteAttributeString("cy", "1143000"); slideMaster1Writer.WriteAttributeString( "cx", "8229600" ); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteStartElement("a", "prstGeom",null); slideMaster1Writer.WriteAttributeString("prst", "rect"); slideMaster1Writer.WriteStartElement("a", "avLst",null); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteEndElement(); slideMaster1Writer.WriteStartElement("p", "txBody",null); slideMaster1Writer.WriteStartElement("a", "bodypr",null); slideMaster1Writer.WriteAttributeString("anchor", "ctr"); slideMaster1Writer.WriteAttributeString("rtlCol", "0"); slideMaster1Writer.WriteAttributeString("bIns", "45720"); slideMaster1Writer.WriteAttributeString("rIns", "91440"); slideMaster1Writer.WriteAttributeString("tIns", "45720"); slideMaster1Writer.WriteAttributeString("lIns", "91440"); slideMaster1Writer.WriteAttributeString("vert", "horz");\[/code\]I have been through all the code a 100 times but cannot see what is wrong. any help will be appreciated.