The Office Open XML file formats are a set of file formats that can be used to represent electronic office documents. In Microsoft Word 2007 and later, the binary file format was replaced as the default format by the Office Open XML format, though Microsoft Word can still produce DOC files.
Сравнение форматов DOC и DOCXĭOC is a filename extension for word processing documents, most commonly in the proprietary Microsoft Word Binary File Format.