If you downloaded this file from a random website, email attachment, or peer-to-peer network, do not open it yet. Run it through a reliable antivirus program or an online scanner like VirusTotal to ensure it is not a virus masquerading as a video file.
This is a sequential counter. It indicates that this was the 1,268th media file generated by that specific device or project folder. MXGS-1268.mp4
If you found this file on your hard drive, an old backup, or an SD card and do not remember what it is, you can identify its contents by following these steps: If you downloaded this file from a random
Right-click the file on a Windows PC and select "Properties", or press Command + I on a Mac. This will often show you the date the video was captured or modified, as well as the camera or software used to create it. It indicates that this was the 1,268th media