To "put together" or open the file , you need to extract it using an archiving tool. This file is a compressed package (the .7z extension) that contains a video file (the .mp4 part). 1. Install an Extraction Tool
Once you have the software installed, follow these steps to "put the video together": video_2017-11-26_11-49-48.mp4.7z
Since most operating systems do not have native support for the .7z format, you must download a third-party utility: To "put together" or open the file ,