openxml

I started experimenting with Open XML SDK 2.0 for Microsoft Office . I'm currently able to do certain things such as retrieve all texts in each slide, and get the size of the presentation. For example, I do the latter this way: using (var doc = PresentationDocument.Open(pptx_filename, false)) { var presentation = doc.PresentationPart.Presentation; Debug.Print("width: " + (presentation.SlideSize.Cx / 9525.0).ToString()); Debug.Print("height: " + (presentation.SlideSize.Cy / 9525.0).ToString()); } Now I'd like to retrieve embedded images in a given slide. Does anyone know how to do this or can

I want to know if there is anything that you cannot do with SDK that was exposed in the COM interface? The OpenXML SDK is a convenience layer for the OpenXML file format. Using this SDK you can do everything that is possible to do with the file format, e.g. insert, modify and remove content, metadata and formatting. In contrast to COM automation of Office you can't do anything that is related to application logic. To give you some examples: Using the OpenXML SDK, you can't know the page number of a certain element in a text document because that would require pagination, you can't recalculate

How to set the background of several cells within a row (or of a whole row) in OpenXml? Having read several articles: Coloring cells in excel sheet using openXML in C# Advanced styling in Excel Open XML I still cannot make it work. My task is actually at first glance seems to be somewhat easier and a little bit different from what is written in those articles. The mentioned tutorials predominantly show how to create a new document and style it. While I need to change the styling of the existing one. That is, I have an existing xlsx document (a report template). I populate the report with the

I have a column of data in an Excel sheet which has positive and negative values. What I want to be able to do is apply conditional formatting (a color gradient) from say dark green to light green for positive values and light red to dark red for negative values. However, I don't seem to be able to do that. If I apply a conditional format from, say, the largest value to zero, with zero as light green, then all the negative values will end up being light green too. Is there a way to make a conditional format apply only up to a certain value and not beyond? I can similarly make a conditional

Good morning, I would like to edit some cells from already existing excell file. I tried use EPPlus and normal OpenXml classes. However I failed. In both situation program won't crash but always return old (not modified) excel. Please, what am I doing wrong? Trial 1 - EPPlus: MemoryStream memoryStream = new MemoryStream(); using (var fs = new FileStream(@"Path\Test.xlsx", FileMode.Open, FileAccess.Read)) { byte[] buffer = new byte[1024]; int bytesRead = 0; while ((bytesRead = fs.Read(buffer, 0, buffer.Length)) > 0) { memoryStream.Write(buffer, 0, bytesRead); } } using (ExcelPackage

I am trying to use openxml to produce automated excel files. One problem I am facing is to accomodate my object model with open xml object model for excel. I have to come to a point where I realise that the order in which I append the child elements for a worksheet matters. For Example: workSheet.Append(sheetViews); workSheet.Append(columns); workSheet.Append(sheetData); workSheet.Append(mergeCells); workSheet.Append(drawing); the above ordering doesnot give any error. But the following: workSheet.Append(sheetViews); workSheet.Append(columns); workSheet.Append(sheetData); workSheet.Append