DOC to DOCX - Convert document online

(DOC, DOCX, RTF, TXT, ODT, XLS, XLSX, CSV, ODS, PPT, PPTX, ODP, HTML, XPS, etc.)
Conversion Results:
# Output File Source File Action

How to convert DOC to DOCX:

1. Click the "Choose Files" button to select multiple files on your computer or click the "URL" button to choose an online file from URL, Google Drive or Dropbox.

2. Choose a target document format. The target document format can be PDF, DOC, DOCX, XLS, XLSX, PPT, PPTX, HTML, TXT, CSV, RTF, ODT, ODS, ODP, XPS or OXPS. A target format can only be converted from certain document formats. For example: It can convert DOC to DOCX, but it can't convert DOC to XLSX. When choosing a target format, it will list what source formats can be converted to the target format.

3. Click the "Convert Now!" button to start batch conversion. The output files will be listed in the "Conversion Results" section. Click icon to show file QR code or save file to cloud storage services such as Google Drive or Dropbox.

DOC vs DOCX:
Name DOC DOCX
Full name Microsoft Word Binary File Format Office Open XML Document
File extension .doc .docx, .docm
MIME application/msword application/vnd.-openxmlformats-officedocument.-wordprocessingml.-document
Developed by Microsoft Microsoft
Type of format Document file format Document file format
Introduction DOC is a filename extension for word processing documents, most commonly in the proprietary Microsoft Word Binary File Format. 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. The Office Open XML file formats are a set of file formats that can be used to represent electronic office documents. There are formats for word processing documents, spreadsheets and presentations as well as specific formats for material such as mathematical formulae, graphics, bibliographies etc.
Technical details Binary DOC files often contain more text formatting information (as well as scripts and undo information) than some other document file formats like Rich Text Format and HyperText Markup Language, but are usually less widely compatible. Office Open XML documents are stored in Open Packaging Convention (OPC) packages, which are ZIP files containing XML and other data files, along with a specification of the relationships between them. Depending on the type of the document, the packages have different internal directory structures and names.
Associated programs Microsoft Word, OpenOffice.org Writer, IBM Lotus Symphony, Apple Pages, AbiWord. Microsoft Office, LibreOffice, Kingsoft Office, Google Docs.
Sample file sample.doc sample.docx
Wikipedia DOC on Wikipedia DOCX on Wikipedia