10.mp4.7z -

: If you cannot install software, use an online extractor like ezyZip to upload and unzip the file in your browser.

: Hover over the 7-Zip menu and select Extract Here or Extract to "10.mp4/" . 10.mp4.7z

: Locate your "10.mp4.7z" file and right-click it. : If you cannot install software, use an