The file extension .docx is the default extension for which type of file?

Correct option is A

The file extension .docx is the default extension used for Microsoft Word documents. It represents files created with Microsoft Word that store formatted text, images, tables, and other document elements. Introduced with Microsoft Word 2007, the .docx format is based on XML, making files more compact and easier to recover compared to the older .doc format.
Important Key Points:
1. What is .docx? A document file format used by Microsoft Word for word processing.
2. Introduced In: Microsoft Word 2007 and later versions.
3. Technical Nature: Based on Office Open XML (OOXML) technology.
4. Type of Content Stored: Text, images, charts, tables, and formatting information.
5. Advantages of .docx: Smaller file size, better data recovery, and improved security compared to .doc.
6. Compatibility: Can be opened by Word, LibreOffice Writer, Google Docs, and other word processors.
Knowledge Booster:
· Why option (b) Database file is incorrect? Databases use extensions like .mdb, .accdb, .sql, etc.
· Why option (c) DB2 file is incorrect? DB2 is an IBM database system, not related to Word documents.
· Why option (d) Microsoft Defender file is incorrect? Microsoft Defender does not use .docx files; it is a security application.