Always make sure you trust the source of the file before extracting. If a "funfun.mp4.7z" arrives from an unknown email sender, delete it immediately to avoid malware.
You cannot watch the video directly inside the compressed file. You must "extract" it first. funfun.mp4.7z
Here is a quick guide to understanding what you have and how to open it. 1. What is a .7z file? Always make sure you trust the source of
(e.g., Is it a funny video, a project file, or something else?) Is it a funny video
Think of a .7z file as a digital suitcase. Someone has taken a video file ( funfun.mp4 ) and put it inside a secure suitcase to make it smaller or easier to send via email or download. 2. How to Open funfun.mp4.7z