Docx file specification

The structures specified in this format provide an extended XML vocabulary for a word processing document. The extended elements and attributes allow the format to indicate further information about a document, or to indicate content and formatting of parts of the document beyond the elements and attributes specified in the Office Open XML File Formats specification.

Because these elements and attributes are meant as extensions, their intent and usage varies. The new elements and attributes specified in this format come in six groups. The first group extends the vocabulary for describing formatting properties of text by adding elements for specifying text effects such as shadow, glow, reflection, and also by adding elements for specifying typographical properties such as ligatures or how numeral spacing is displayed.

All other rights are reserved, and this notice does not grant any rights other than as specifically described above, whether by implication, estoppel, or otherwise. The Open Specifications documentation does not require the use of Microsoft programming tools or programming environments in order for you to develop an implementation.

If you have access to Microsoft programming tools and environments, you are free to take advantage of them.

Certain Open Specifications documents are intended for use in conjunction with publicly available standards specifications and network programming art and, as such, assume that the reader either is familiar with the aforementioned material or has immediate access to it.

For questions and support, please contact dochelp microsoft. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Please rate your experience Yes No. Any additional feedback? By , this new file format became part of Office and is carried on in the new versions of Microsoft Office as well.

The new file type has added advantages of small file sizes, fewer changes of corruption and well-formatted images representation. The contents of a new Word document can be viewed by unzipping its contents. The collection contains a list of XML files that are categorized as:.

Microsoft Word uses these files to find the relationship between files and to locate the document contents. When a Word document archive is extracted, it contains a number of such files as detailed below. This file contains information that tells MS Word where to look for the document contents and other references. Each relationship is identified by a unique relationship id and specifies the referenced XML file as target. In "right" mode, paragraph text is aligned to the right margin.

Notice how this text is aligned to the right side. This paragraph is a demonstration of that. You can find image ID with the following xpath syntax:. Floating images are placed relative to paragraphs with text flowing around them.

A layouter is an algorithm for calculating character positions from a DOCX file. This is a complex task if you need percent fidelity rendering. The amount of time needed to implement a good layouter is measured in man-years, but if you only need a simple, limited one, it can be done relatively quickly. A layouter fills a parent rectangle, which is usually a rectangle of the page. It add words from a run one by one.

When the current line overflows, it starts a new one. Create the desired content step-by-step. Start with a simple docx file. Save each step to its own file, as in 1.