Right-click the file and select Properties (Windows) or Get Info (Mac) to see if there is a "Comment" or "Origin" tag.
If you found this filename mentioned online and want to see the video: g60959.mp4
Look at the folder or app where the file is stored. Files starting with letters followed by numbers often come from: Right-click the file and select Properties (Windows) or
Use MediaInfo to see the technical metadata (like what camera recorded it) if the video won't load. If you are trying to find the original source: g60959.mp4