If the file won't play, use MediaInfo to see the technical data (metadata) which might tell you which app created it. 3. Safety and Security

Files with names starting with "VID-" followed by a long string of numbers are typically generated by:

If the file is only a few KB, it might not be a real video but a shortcut or a script. 4. Renaming and Organizing To make the file easier to find later: Right-click the file and select Rename .

If you are having trouble playing the video, you can use these universal tools: