Regardless of the content, an file (formally MPEG-4 Part 14 ) is a digital multimedia container format. According to experts at Adobe , these files are favored for their ability to store high-quality video and audio while maintaining a small enough size for easy online streaming.
Some video hosting sites or private databases (such as Discord attachments or imageboards) use numerical strings for their file URLs. In this case, "80499" would be the unique identifier for that specific upload. 80499.mp4
Knowing if it was on a social media thread, a specific website, or an old hard drive would help in identifying the exact content. Regardless of the content, an file (formally MPEG-4