: Use the built-in Archive Utility (double-click the file) or download The Unarchiver from the App Store.
Lossless editing tools like LosslessCut if you need to trim the video without re-encoding. 105.mp4.7z
Based on the file extension , you are dealing with a video file (MP4) that has been compressed using the 7-Zip (7z) format to reduce its size for sharing or storage. : Use the built-in Archive Utility (double-click the
: If you get an "archive is corrupted" error, the file may have been downloaded incorrectly. Try downloading it again. : If you get an "archive is corrupted"
Once extracted, you will have a standard file. You can play this using: VLC Media Player (Recommended for its wide codec support). Built-in players like Windows Media Player or QuickTime.
To access the video, you need to extract it from the compressed archive. 1. Extraction Steps
: If you see files named .7z.001 , .7z.002 , etc., you must have all parts in the same folder before you can start the extraction from the first part. 3. Playing the Video