Why docx file is corrupted after editing with npoi

Question

I want to edit .docx file and use npoi library.

Is is a snippet:

XWPFDocument doc;
using( FileStream fileStream = new FileStream(@"D:\template.docx", FileMode.Open, FileAccess.Read) ) {
doc = new XWPFDocument(fileStream);
    fileStream.Close();
}

// here can change doc or do nothing

using(FileStream fileStreamNew = new FileStream(@"D:\test.docx", FileMode.CreateNew)) {
    doc.Write(fileStreamNew);
    fileStreamNew.Close();
}

But I get the corrupted file. When I try to open file, modal window is displayed: "We are sorry. We can't open test.docx we found a problem with its content. Details: Unspecified error. Location: /word/header1.xml, Line: 0, Column: 0"

Thank you in advance

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UPDATE:

Problem is in template file. If I remove images from header & footer then error pass away. But if I put template images back the error return. Any ideas?

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UPDATE:

The problem occurs when the image property "Wrap Text" has a value other than "In Line With Text". In my case when the image is background of the text. ('behind text' value).

user_7015118 · Answer

Try to read the file in only using a regular Stream and System.IO.File, then save using FileStream and System.IO.File.

How to: Create a File or Folder (C# Programming Guide) C# (CSharp) NPOI.XWPF.UserModel.XWPFDocument Code Examples

XWPFDocument doc;
using( Stream fileStream = File.OpenRead("D:\template.docx") ) {
doc = new XWPFDocument(fileStream);
    fileStream.Close();
}


using(FileStream fileStreamNew = File.Create("D:\test.docx")) {
    doc.Write(fileStreamNew);
    fileStreamNew.Close();
}

user_3855789 · Answer

Not sure if you still need it. But I fixed some of those errors relate to the wrap text images in https://github.com/nissl-lab/npoi/pull/510 I'm not able to catch all the cases, if you found something not caught by it, let me know.

Why docx file is corrupted after editing with npoi

2 Answers