Examples of File Extensions: A Guide for Kids

📚 Quick Study Guide

• 📄 File Extension Definition: A short set of letters (usually 3 or 4) after the filename, separated by a dot (.).
• 🖼️ Image Files: .jpg, .png, .gif are common for photos and pictures.
• 📝 Text Files: .txt for simple text documents.
• 📜 Document Files: .doc or .docx (Microsoft Word), .pdf (Portable Document Format).
• 🎶 Audio Files: .mp3 for music.
• 🎬 Video Files: .mp4, .mov for videos.
• ⚙️ Executable Files: .exe (Windows) for programs. (Be careful opening these!)

Practice Quiz

1. What type of file is typically used for storing images?
   1. .txt
   2. .mp3
   3. .jpg
   4. .exe
2. Which file extension is commonly associated with Microsoft Word documents?
   1. .pdf
   2. .docx
   3. .mp4
   4. .txt
3. What kind of file is a .mp3 file?
   1. Text Document
   2. Image File
   3. Audio File
   4. Video File
4. Which file extension indicates an executable program on Windows?
   1. .txt
   2. .exe
   3. .jpg
   4. .mp3
5. Which file extension is used for Portable Document Format?
   1. .pdf
   2. .docx
   3. .txt
   4. .mp4
6. What is the primary purpose of a file extension?
   1. To make the file look pretty.
   2. To tell the computer what type of file it is.
   3. To hide the file.
   4. To compress the file.
7. Which of these is a common video file extension?
   1. .txt
   2. .pdf
   3. .mp4
   4. .jpg