In Windows, what file extension usually indicates a Word document created with Microsoft Word?

In Windows, what file extension usually indicates a Word document created with Microsoft Word?

• A. .docx
• B. .txt
• C. .exe
• D. .pdf

Answer: (A)

File extensions tell Windows which program should open a file. For Word documents created with Microsoft Word, the usual extension is .docx. This modern Open XML format has been Word’s default since Word 2007, allowing rich formatting and media while keeping file sizes smaller. The other extensions point to different kinds of files: .txt is plain text with no formatting, .exe is an executable program, and .pdf is a fixed-layout document format used by Adobe. So seeing .docx signals that the file is a Word document that can be opened with Word or other compatible software.

File extensions tell Windows which program should open a file. For Word documents created with Microsoft Word, the usual extension is .docx. This modern Open XML format has been Word’s default since Word 2007, allowing rich formatting and media while keeping file sizes smaller. The other extensions point to different kinds of files: .txt is plain text with no formatting, .exe is an executable program, and .pdf is a fixed-layout document format used by Adobe. So seeing .docx signals that the file is a Word document that can be opened with Word or other compatible software.