The .7z format is used to reduce the file size of the video for easier sharing or storage, or to bundle multiple files together.
The extension indicates a 7-Zip ( .7z ) compressed file containing a MP4 video file ( 335.mp4 ). 335.mp4.7z
You will need archive software such as 7-Zip (Windows), The Unarchiver (macOS), or similar apps on mobile to "extract" or "unzip" the .mp4 file before it can be played in a media player. The Unarchiver (macOS)
Always ensure the source of compressed files is trusted, as archives can be used to hide malicious software. 335.mp4.7z
