1_5044358395306443431mp4 -

: If you need to manipulate parts of this "solid piece" (like removing a background or moving an object), you would typically use techniques like masking or rotoscoping within your After Effects or Premiere Pro project.

Are you trying to this specific file into an editing program, or did you receive it as a final export ? After Effects Tutorial - Importing Basics 1_5044358395306443431mp4

: The .mp4 extension confirms this is a compressed video container, which by nature is a single, non-layered file. : If you need to manipulate parts of