If you found this file on a computer or in a cloud storage folder (like iCloud, Google Photos, or Dropbox), it usually means:
: This is a QuickTime file format. On iPhones, these are typically encoded using H.264 or HEVC (H.265) , which provide high quality at smaller file sizes. Why you might be seeing it trim.464AFC88-EF03-4736-B7F1-CB89A7D1E88B.MOV
: Since this is a "trimmed" version, you likely have a longer "master" version of this video somewhere in your library. If you need to save space, check if you still need both. If you found this file on a computer
: This indicates the video is a shortened version of an original recording. When you edit a clip in iOS and select "Save as New Clip," Apple adds this prefix to distinguish it from the original. If you need to save space, check if you still need both
: Your device automatically uploaded the edited version of a video you captured.
: You sent or received this clip via an app like AirDrop or iMessage. How to handle or open it