If you downloaded this file from an untrusted source or received it via an unexpected email:
: Ensure it isn't a "double extension" file (e.g., 762777.mp4.exe ), which is often malware disguised as a video. 762777.mp4
If you are unsure what the video contains, check the following: If you downloaded this file from an untrusted
: Use QuickTime Player or Adobe Creative Cloud tools if editing is required. 762777.mp4