How do you open .tmp video files?

To open .tmp video files, you can first try renaming the file extension to a more common video format, such as .mp4 or .avi, and then attempt to play it with a media player like VLC or Windows Media Player. If that doesn't work, you can use a file recovery tool or video repair software, as .tmp files are often temporary files created by video editing software. Additionally, check if the original program that created the .tmp file can recover or convert it into a usable format.