Which file extension is usually used when saving an MS Word document?

Which file extension is usually used when saving an MS Word document?
एमएस वर्ड डॉक्यूमेंट को सेव करते समय प्रायः किस फाइल एक्सटेंशन का उपयोग किया जाता है?

.jpg .docx .png .ppt

Detailed Solution & Logic

Correct Answer:

.docx

.docx → Default extension for Word documents in MS Word 2007 and later (including MS Word 365).
.doc → Older extension used in Word versions prior to 2007.
Other related formats:
.pdf → Portable Document Format (when exporting/saving as PDF).
.rtf → Rich Text Format.
.txt → Plain text files.
Key Takeaway
The standard and most common extension

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