In this article I will explain the DOCX file structure, summarising information that is scattered over the internet. This article is an intermediary between the huge, complex ECMA specification and the simple internet tutorials currently available. You can find the files that accompany this article in the toptal-docx project on my github account. DOCX FILES ARCHIVE#Ī Simple DOCX fileĪ DOCX file is a ZIP archive of XML files. If you create a new, empty Microsoft Word document, write a single word ‘Test’ inside and unzip it contents, you will see the following file structure:Įven though we’ve created a simple document, the save process in Microsoft Word has generated default themes, document properties, font tables, and so on, in XML format. To start, let us remove the unused stuff and focus on document.xml, which contains the main text elements. When you delete a file, make sure you have deleted all the relationship references to it from other the xml files. Here is a code-diff example on how I’ve cleared dependencies to app.xml and core.xml. Let’s break it down by file from here, from the top: _rels/.rels Here’s the structure of our simplified, minimal DOCX document (and here’s the project on github): If you have any unresolved/missing references, MSWord will consider the file broken. In this case, it references word/document.xml: This defines the reference that tells MS Word where to look for the document contents.
This file defines references to resources, such as images, embedded in the document content.
Our simple document has no embedded resources, so the relationship tag is empty: Xml contains information about the types of media inside the document.
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