.DOCX file extension
To open .DOCX files on Windows, open with Microsoft Word by double-clicking the file.
.docx files are text documents that can be opened with Microsoft Word, LibreOffice, or Google Docs. To open a .docx file, use any compatible office suite on your device.
Last updated: March 19, 2026 · Reviewed by Julian Stricker
Open on your device
Choose your operating system for a dedicated step-by-step opening guide.
How to open .DOCX files
Use these platform-specific instructions to open .DOCX files safely.
Windows
- Open with Microsoft Word by double-clicking the file.
- If Word is not installed, use LibreOffice Writer or Google Docs online.
Mac
- Open with Microsoft Word for Mac or Apple Pages.
- Alternatively, use LibreOffice for a free option.
Linux
- Open with LibreOffice Writer or OnlyOffice.
- Ensure compatibility by installing Microsoft core fonts.
iOS
- Open using Microsoft Word app or Apple Pages from the Files app.
Android
- Use Microsoft Word mobile app or Google Docs to open the file.
Security notes
- Avoid opening DOCX files from unknown email attachments.
- Check document properties for suspicious links or content.
- Disable macros unless you trust the source of the document.
Recommended antivirus software
Scan files before opening them. These antivirus tools help protect against malware and viruses.
Avast offers free and premium antivirus software that protects against viruses, malware, ransomware, and phishing. Scan files before opening them to ensure safety.
NortonNorton 360 delivers comprehensive antivirus protection, VPN, and identity theft monitoring. Scan files for threats before opening to keep your device secure.
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Can't open this file?
These are the most common causes and fixes when .DOCX files fail to open.
Common reasons
- Formatting issues when opened in different software
- Corrupted DOCX file
Fix steps
- Ensure all necessary fonts are installed.
- Use the original software for editing if possible.
- Convert the document to PDF for consistent viewing.
OS-specific troubleshooting
Convert .DOCX to other formats
Use conversion tools to change .DOCX files into formats your software supports.
What is a .DOCX file?
DOCX is a file format introduced by Microsoft as part of the Office Open XML standard. It uses a combination of XML and ZIP compression to store documents with text, images, and other media. This format is designed for compatibility and efficient storage.
Background
The DOCX file format was introduced by Microsoft in 2007 with the release of Office 2007, replacing the older DOC format. It was developed as part of the Office Open XML standard to provide a more open and flexible file format that could be used across different platforms and applications. DOCX files are popular in business, education, and personal use for creating and sharing documents that include text, images, tables, and other multimedia elements. The format's use of XML allows for better data recovery and integration with other software systems. As a compressed format, DOCX files are generally smaller in size compared to their predecessors, making them easier to share and store. Additionally, the format supports advanced features like comments, track changes, and various layout options, making it a versatile choice for document creation.
Common MIME types: application/vnd.openxmlformats-officedocument.wordprocessingml.document
Known aliases: .word
Further reading
Authoritative resources for more details on the .DOCX format.
Common .DOCX issues
Formatting issues when opened in different software
Fonts and styles may appear differently across various office suites.
- Ensure all necessary fonts are installed.
- Use the original software for editing if possible.
- Convert the document to PDF for consistent viewing.
Corrupted DOCX file
The file may not open or display an error message.
- Use the 'Open and Repair' feature in Microsoft Word.
- Attempt recovery through cloud storage version history.
FAQ
Can DOCX files contain viruses?
While DOCX files themselves are not executable, they can contain malicious macros or links. Always scan files from untrusted sources.
How can I convert a DOCX file to PDF?
Use the 'Save As' or 'Export' feature in Microsoft Word or LibreOffice to convert the file to PDF.
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