It may be a segmented part of a larger video file (Volume 2 or Part 2).
If this was an unsolicited attachment or a download from a suspicious site, it is best to delete it. Wol.2.mp4
Use a tool like MediaInfo to see the actual encoding details, which can often reveal the original source or creator. It may be a segmented part of a
Because the name is non-descriptive, "Wol.2.mp4" could refer to a variety of things depending on where you found it: do not open it. Safety Recommendations
In some cases, files with generic names and double extensions (like Wol.2.mp4.exe ) are used to disguise malicious software. If you downloaded this from an untrusted source, do not open it. Safety Recommendations