CS Basics: File extensions

Learn about file extensions, what they are for and why they are important. Check out the lesson plan and resources that work with this video: https://www.tes.com/teaching-resource... OR: https://www.teacherspayteachers.com/P... Check out my online STEM courses: https://www.learnstem.com.au Follow me on Twitter:   / mrzacmatthews   For more content be sure to subscribe above and at TES: https://www.tes.com/teaching-resource... Or Teachers Pay Teachers: https://www.teacherspayteachers.com/S...