A. xls
B. docx
C. exe
D. .ppt
🧠 Explanation:
The extension of MS Excel files is .xls, identifying spreadsheets. For tech students, this highlights file management, making it a key topic for studying digital literacy, spreadsheet tools, and productivity. Extensions define formats. Understanding this ensures efficient Excel use. It’s essential for mastering file operations. Studying .xls offers insights into how software identifies files, crucial for IT, data science, and business.
